Saker movements
Summary information on the movements of tagged Sakers is given below. The tracking maps show the general breeding area where the Sakers were tagged and their movements after leaving their breeding territories.
- Bob
- Fred
- Fern
- Frank
- Brenda
- Cathy
- Gary
- Gwen
- Angie
- Helen
- Galba
- Gobi
- Zaluu
Bob
Bob is an adult male trapped and tagged at his breeding territory on the 19th May 2009, when his nest (Artificial Nest B01) held a clutch of five eggs. This was a newly occupied territory. Two neighbouring pairs of Sakers in this grid had nests 4 km away to the east and southeast.
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Ranging behaviour of Bob (blue) during May. Artificial nests (green) are spaced 1 km apart. |
During May Bob was tracked as he ranged over an area covering 29 km2 and was recorded up to 11 km from his nest site. Bob’s movements showed a marked bias towards the west, away from the neighbouring Sakers breeding in the grid. Bob’s nest was monitored on the 22nd May when there were three newly-hatched chicks and two eggs in the nest. (All locations were within the general breeding area and are not shown on the tracking map).
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| Ranging behaviour of Bob (blue) during June. Artificial nests (green) are spaced 1 km apart. |
01-30 June 2009
Bob’s nest was monitored on the 1st June and it was found to be deserted with two cold eggs and no chicks. The reason for the nest failure is not known. In June Bob shifted his ranging area over 4 km kilometres to the west of his breeding site, where he hunted over a limited area of 7 km2. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 July 2009
Bob remained in the same area for most of July but in the last few days of the month shifted his foraging location ca. 10 km to the south. (All locations were within the general breeding area and are not shown on the tracking map)
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| Ranging behaviour of Bob (blue) during August. Artificial nests (green) are spaced 1 km apart. |
In August Bob remained within the general breeding area but the area over which he ranged increased markedly, with his GPS location covering an area of 81 km2. (All locations were within the general breeding area and are not shown on the tracking map).
01 September-30 November 2009
Bob stayed in the general breeding area. (Data not shown on tracking map).
Fred
Adult male Saker trapped and tagged at his breeding territory on the 29th April 2009, when his nest (Artificial Nest F15) held a brood of four 14-day old chicks. Sakers also bred in this same artificial nest in 2008, and in 2007 they bred in the adjacent artificial nest (F10) 1 km away.
29-30 April 2009
During the two days after tagging Fred remained within 2.6 km of his nest site. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 May 2009
Fred remained close to his nest site during May and our GPS data indicated that he ranged over an area of ca. 16 km2 around his nest, never being located more than 4.1 km away. Fred’s movements were directed away from the neighbouring Saker territory 1 km to the east in artificial nest F20 (see also tracking data for Fern). His nest was monitored on the 10th, 23rd and 27th May and the four chicks were developing well at each visit. (All locations were within the general breeding area and are not shown on the tracking map).
01-30 June 2009
In June Fred’s movements followed a similar pattern to that in the previous month. He ranged over a limited area of ca. 19 km2 and was never located more than 6.7 km from his nest site. His nest was monitored on the 3rd June and all four chicks had left the nest and three of these fledglings were located near an adjacent artificial nest 1 km away to the west (Artificial Nest F10). During the month our GPS data showed that Fred spent a lot of time in the vicinity of these two artificial nests. The territory was monitored again on the 10th June and all four fledglings were near Artificial Nest F10. It seems likely that artificial nests F10 and F15 are both within the defended nest area of this pair of Sakers. The shift to artificial nest F10 was perhaps a response to territorial interactions with his immediate neighbours breeding at artificial nest F20 (All locations were within the general breeding area and are not shown on the tracking map).
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| GPS locations and movement ranges of Fred (blue) and Fern (red) during June 2009 (Artificial nests are shown in green) |
Fred remained in his breeding territory during July, whilst his young brood of fledglings dispersed from the area after gaining independence from their parents during this month. Fred ranged over an area of ca. 10 km2 and was never located more than 2.8 km from his nest site, spending most of his time in the vicinity of two artificial nests (F10 and F15; see also tracking data for Fern). (All locations were within the general breeding area and are not shown on the tracking map).
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| GPS locations and movement ranges of Fred (blue) and Fern (red) during August 2009 (Artificial nests are shown in green) |
Fred remained in his breeding territory during August, ranging over a limited area of ca. 5 km2 and was never located more than 3.6 km from his nest site, spending most of his time in the vicinity of two artificial nests (F10 and F15). His movements continued to be biased westwards away from the neighbouring Saker nest site in the adjacent artificial nest (F20), indicating that neighbouring territorial boundaries are still maintained after the young have dispersed from the nesting area. (All locations were within the general breeding area and are not shown on the tracking map).
Fred stayed in the general breeding area. (Data not shown on tracking map).
Fern
A female trapped and tagged at her breeding territory on the 29th April 2009, when her nest (Artificial Nest F20) held a brood of five 6-day old chicks. Sakers also bred in this same artificial nest in 2007, but not in 2008. Fern still retained some juvenile feathers indicating that she was in her 3rd calendar year (i.e., two years old). 29-30 April 2009
During the two days after tagging Fern remained at her nest site, where she was brooding her five small chicks. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 May 2009
GPS locations and movement ranges of Fred (blue) and Fern (red) during May 2009 (Artificial nests are shown in green)
Fern remained close to her nest site during May, ranging over an area of ca. 7 km2 (excluding one location when she had moved 8 km from her nest). During the month her movements were directed mainly to the east, away from her immediate neighbouring pair of Sakers in the adjacent artificial nest 1 km to the west (F15; see also tracking summary for Fred). Fern’s nest was monitored on the 10th and 23rd May when the five chicks were seen to be developing well. (All locations were within the general breeding and are not shown on the tracking map).
01-30 June 2009
In June Fern remained close to her nest site, ranging over an area of ca. 7 km2 and was never located more than 2.7 km away from her nest. Her movements continued to be directed towards the east, away from the immediate neighbouring pair of Sakers showing that Sakers occupy exclusive territorial ranges when nesting in close proximity (see tracking data for Fred). Ferns nest was monitored on the 3rd June when it was found that three of her five chicks had left the nest and were on the ground below. The territory was next visited on the 16th June when one fledged chick was near the nest site and the other four were on the adjacent artificial nest 1 km to the north (Artificial Nest F19). Tracking data suggests the chicks moved to this artificial nest (from which a single young Raven had fledged at the end of May) sometime around the 10th June. (All locations were within the general breeding area and are not shown on the tracking map).
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| GPS locations and movement ranges of Fred (blue) and Fern (red) during July 2009 (Artificial nests are shown in green) |
01-31 July 2009
Fern remained on her breeding territory during July, ranging over an area of ca. 9 km2 and was never located more than 2.6 km away from her nest. The separation in ranges between Fern and the male (Fred) from the neighbouring territory was maintained during the month. During July Fern’s young brood became independent of their parents and dispersed from the nesting area. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 August 2009
Fern remained near her nesting site during the month, ranging over an area of 10 km2 and never being located more than 3.5 km from her nest. The separation in ranges between Fern and her neighbour Fred was maintained during the month (see tracking data for Fred). (All locations were within the general breeding area and are not shown on the tracking map).
01 September-30 November 2009
Fern stayed in the general breeding area. (Data not shown on tracking map).
Frank
Frank is an adult male trapped and tagged at his breeding territory on the 3rd May 2009, when his nest (Artificial Nest F20) held a brood of five 10-day old chicks. Frank is the nest mate of Fern.  |
| Movement ranges of Frank (yellow), his nest mate Fern (pink) and his adjacent neighbouring male Fred (blue) during May 2009 |
During May, Frank ranged over a larger area (27 km2) than his mate Fern but nevertheless did not travel very far from his nest (maximum recorded distance was 3.6 km). Frank’s movements were predominantly eastwards, away from the territory of his neighbouring male to the west. There was some small overlap between the movement ranges of the neighbouring males (Fred and Frank) who were using artificial nesting sites only 1 km apart. It seems from this example that neighbouring Saker Falcon pairs hunt over spatially separate and largely exclusive territorial ranges during the nestling phase of the breeding cycle. (All locations were within the general breeding area and are not shown on the tracking map).
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| Movement ranges of Frank (yellow), his nest mate Fern (pink) and his adjacent neighbouring male Fred (blue) during June 2009 |
The five chicks fledged from Frank and Fern’s nest in early June. During the month Frank again ranged over a larger area than his mate, with GPS location points covering an area of 13 km2 (excluding one outlying point 9.3 km from the nest). It is interesting to see that once the chicks had left the nest Frank and his neighbouring male occupied entirely distinct ranges with no overlap at all. Fern’s range continued to be encompassed within that of her mate and was also spatially separated from the neighbouring male. From this example it appears that exclusive territorial ranges are maintained during the post-fledging period of the breeding cycle too. (All locations were within the general breeding area and are not shown on the tracking map).
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Movement ranges of Frank (yellow), his nest mate Fern (pink) and his adjacent neighbouring male Fred (blue) during July 2009 |
During July the brood from Frank and Fern’s nest dispersed from the natal area but the adults remained on their breeding territory. Frank moved over an area of 16 km2 during the month and was never located more than 4 km from his nest site. The dispersion pattern of our GPS location data for Frank, Fern and Fred followed a similar pattern to that seen before: range of the Fern was smaller and was encompassed within that of her mate Fred, whilst the pair occupied spatially distinct ranges from the neighbouring male with little overlap. From this example it appears that exclusive territorial ranges continue to be maintained even after the juveniles have dispersed from their natal area. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 August 2009
GPS locations and movement ranges of Fred (blue) and Fern (red) during May 2009 (Artificial nests are shown in green)
In August Frank remained in the general nest area and the dispersion of our GPS location points for Frank, his mate and neighbouring male followed a familiar pattern: the breeding pair maintained exclusive, spatially distinct ranges from their neighbouring male. However, Frank also made two excursions to the south during August. On the 9th August he flew to an area approx. 40 km south of his nesting site and remained there until the following day when he returned back to his nesting territory. On the 12th August he again made a similar excursion to the same area, returning back to his nesting territory the following day, where he remained until the end of the month. These brief excursions may be the expression of Frank’s migratory impulses (see tracking map).
Movement ranges of Frank (yellow), his nest mate Fern (pink) and his adjacent neighbouring male Fred (blue) during August 2009
01-30 September 2009
No further transmissions have been recieved from Frank. Either the PTT has failed, or the bird has died.
Brenda
Brenda is an adult female trapped and tagged at her breeding territory on the 3rd May 2009, when her nest (Artificial Nest B22) held a brood of four 3-day old chicks. Sakers have bred in this territory since 2007 but have moved their nest location to adjacent artificial nests in each year. No GPS signals were detected from Brenda until the 10th May, suggesting that she spent most of her time until then brooding her chicks inside the metal artificial nest site or that there was some problem with the transmitter. From the 10th May until the end of the month Brenda stayed close to her nest site ranging over an area of approx. 4 km2 travelling no further than 3.4 km from her nest. All her movements were towards the east of her breeding site and her nearest Saker Falcon neighbours were nesting 4.3 km to the west (Artificial Nest B01) and 3 km to the south (Artificial Nest B20). Brenda’s nest was monitored on the 9th and 22nd May when all four chicks were seen to be developing well. (All locations were within the general breeding area and are not shown on the tracking map).
We received location data for Brenda from the 1st to the 20th June. During this time she remained in the vicinity of her nest ranging over an area of approx. 4 km2 and never travelling further than 2.8 km from her nest. Brenda’s nest was monitored on the 1st and 11th June and on the latter visit two of the chicks had fledged from the nest and were on the ground nearby. The territory was visited again on the 21st June when all four chicks had fledged from the nest. No satellite signals were received for the period 21st to 30 the June (All locations were within the general breeding area and are not shown on the tracking map).
In July we only received tracking data for two days, on the 14th and 15th, when Brenda was still present in the vicinity of her nesting site. There is clearly some problem with the satellite transmitter. (All locations were within the general breeding area and are not shown on the tracking map).
No data was received from the satellite transmitter during August; the transmitter has failed.
Cathy
Cathy is an adult female trapped and tagged at her breeding territory on the 5th May 2009, when her nest (Artificial Nest C04) held a clutch of five eggs. Sakers have bred in this territory since 2007 but moved their nest location to an adjacent artificial nest in 2008. Picture shows Cathy’s nest. 05-31 May 2009
Cathy spent most of May in the vicinity of her nest, ranging over an area of 10 km2 and travelling up to 5.3 km from her nest. Cathy and her mate are the only Sakers breeding in this particular grid of artificial nests. Their nest was monitored on the 10th May when there were four recently hatched chicks and a hatching egg present in the nest. The next monitoring visit was on the 21st May when all five chicks were developing well. (All locations were within the general breeding area and are not shown on the tracking map).
01-30 June 2009
In June Cathy was located mostly within the vicinity of her nest but she ranged over an area of approx. 33 km2, though she was never located more than 5 km from her nest. Cathy’s nest was monitored on the 2nd June when all five chicks were developing well. On the 12th June the monitoring visit found three chicks in the nest, one fledged chick outside but no sign of the fifth chick (possibly taken by a predator after leaving the nest). Another visit on the 23rd June found four fledged chicks flying around the vicinity of the nest. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 July 2009
From the 1st to the 20th July Cathy remained in the vicinity of her nest site. However, on the 20th July Cathy moved ca. 290 km to the southwest, where she remained near Sayhan-Ovoo in Dundgovi aimag until the 25th July. She then returned back to her nesting area and on the following day (July 26th), she set off in an easterly direction and by the 27th July she had settled briefly near Delgerhaan, Khentiy aimag ca. 145 km east of her nesting site. By the 29th July had travelled ca. 200 km southeast to Delgerah, Dornogovi aimag. Early the next day she was located ca. 150 km southeast in Halzan soum and by the end of the day she had travelled a further 90 km southeast and was located near Dariganga, Suhbaatar aimag, where remained until the end of the month. (see tracking map).
01-31 August 2009
Cathy remained in the volcanic plains near Dariganga, Suhbaatar aimag throughout August, where the linear pattern of GPS location points indicates that she spent much of her time along a 2 km stretch of an electricity distribution line and was hunting over an area of 21 km2. (see tracking map).
01-30 September 2009
On the 2nd September at 6:00am, Cathy moved away from the eastern
border of Mongolia towards the general breeding area. Two days later she had
travelled over 600km E and arrived in the general breeding area where she
remained for the rest of the month
01-31 October 2009
On the 11th of October Cathy left the breeding area in a SSW
direction crossing the southern border of Mongolia on the morning of October
the 13th. From here she travelled 1200km SW through China arriving
in the southern part of the Qinghai region on the 18th of October
where she remained for the rest of the month
01-30 November 2009
Cathy remained in the southern part of the Qinghai region throughout
November. (Data not shown on tracking map).
Gary
Gary is an adult male trapped and tagged at his breeding territory on the 7th May 2009, when his nest (Artificial Nest G04) held a clutch of five eggs. Gary’s mate is Gwen. Sakers have bred in this territory since 2007 but they moved their nest location each year using adjacent artificial nests.
07-31 May 2009
Gary’s GPS locations and movement range (blue) in May. Artificial nests are spaced 1 km apart (green).
During May Gary remained in the vicinity of his nest site, ranging over an area of 25 km2 and never being located more than 5 km from his nest. His nest was monitored on the 11th and 25th May when the five chicks were seen to be developing well. (All locations were within the general breeding area and are not shown on the tracking map).
01-30 June 2009
Movement ranges of Gary (blue) and his mate Gwen (pink) in June. Artificial nests are spaced 1 km apart (green).
Gary remained in his nest vicinity during June, ranging over an area of 27 km2 and never being located more than 5 km from his nest. His movements in June followed a broadly similar pattern to his tracked movements during May. Gary’s nest was monitored on the 4th and 14th June when the five chicks were seen to be developing well and almost ready to leave the nest on the last visit. When the territory was next visited on the 24th June all five chicks had fledged and were in the vicinity of the nest site. (All locations were within the general breeding area and are not shown on the tracking map).
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| Movement ranges of Gary (blue) and his mate Gwen (pink) in July. Artificial nests are spaced 1 km apart (green). |
01-31 July 2009
During July Gary’s movements were concentrated to the west of his nesting site and he ranged over a smaller area than in the previous two months, being tracked over an area of 14 km2 and was located up to 4 km from his nest site. His mate Gwen remained in the breeding area until 18th July (see tracking map for Gwen). (All locations were within the general breeding area and are not shown on the tracking map)
01-31 August 2009
Movement ranges of Gary (blue) and his mate Gwen (pink) in August. Artificial nests are spaced 1 km apart (green).
Gary remained near his breeding site in August ranging over an area of 24 km2, though most locations came from an area ca. 3 km west of his nest site. His nest mate Gwen returned to the breeding territory on the 22nd August after spending seven weeks away (see tracking map for Gwen); her ranging behaviour overlapped with that of Gary’s on her return. (All locations were within the general breeding area and are not shown on the tracking map)
01 September to 30 November 2009
Gary stayed in the general breeding area. (Data not shown on tracking map).
Gwen
Gwen is an adult female trapped and tagged at her breeding territory on the 13th May 2009, when her nest (Artificial Nest G04) held a brood of five chicks aged 3-days old. Gwen’s mate is Gary. Sakers have bred in this territory since 2007 but they moved their nest location each year using adjacent artificial nests.
13-31 May 2009
We obtained only three GPS location points during May for Gwen, these being from the nest site in the last three days of the month. It is likely that Gwen spent most of her time during the preceding days brooding her chicks inside the metal nest box. Her nest was monitored on the 25th May when the five chicks were seen to be developing well. (All locations were within the general breeding area and are not shown on the tracking map).
01-30 June 2009
Gwen remained in the vicinity of her nest site during June as her five nestlings developed and eventually left the nest in the middle of the month. Her movements were almost entirely within the range of her nest mate Gary but she covered a smaller area of 15 km2 and was never located more than 3 km from her nest. (All locations were within the general breeding area and are not shown on the tracking map).
01-31 July 2009
Over the period 1st to 18th July Gwen remained in the vicinity of her nest site and was tracked over a range covering 14 km2, which partially overlapped with that of her nest mate Gary. On the 19th July Gwen was located ca. 20 km southwest of her breeding site. By the following day she had travelled a further 270 km southwest near Sayhan-Ovoo, Dundgovi aimag and over the next two days she was detected at locations up 50 km from here. On the 23rd July she left Sayhan-Ovoo and travelled 127 km to the northwest where she was located in Taragt soum, Overhangay aimag 10 hours later. On the 24th July she was located 90 km northeast and her wandering continued as she was located 70 km southwest of here in the Shar Nohoytyn Mountains the following day. Apart from a 40 km sojourn to the southeast on the 26th July, Gwen remained near Shar Nohoytyn Mountains, Overhangay aimag until the end of the month. (see tracking map).
01-31 August 2009
Gwen remained in the Shar Nohoytyn Mountains until the 9th August when she moved ca. 75 km to the southeast before returning to this temporary settlement area in the mountains again the following day. She spent another 10 days in the Shar Nohoytyn Mountains and then moved ca. 100 km east to a location near Delgerhaan, Tov aimag. On the 22nd August her wandering continued and she moved 187 km North-east in just four hours and was back in her nesting area later that same day. Gwen remained back in her breeding area until the end of the month. (see tracking map).
01 September - 30 November 2009
Gwen did not leave the general breeding area. (Data not shown on tracking map).
Angie
Angie is an adult female trapped and tagged at her breeding territory on the 12th May 2009, when her nest (Artificial Nest A13) held five recently-hatched chicks. Sakers have bred in this territory since 2008 when they used an adjacent artificial nest. Picture shows Gankhuyag Purev-Ochir, Dimitar Ragyov and Yozora Tedehara fitting Angie’s satellite tag. 12-31 May 2009
We obtained GPS locations for Angie from the 24th May top the end of the month and all were from the vicinity of the nest site, with the furthest location being 1.7 km from the nest. Angie’s nest site was monitored on the 22nd May when the five chicks were developing well (All locations were within the general breeding area and are not shown on the tracking map).
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Ranging area of Angie (blue) during June. |
Angie’s movements during the nestling phase of the breeding cycle were dramatically different from all the other breeding females in our Artificial Nest Experimental Area. Unlike the others, Angie ranged over an enormous area of 1,250 km2, and travelled up to 43.2 km from her nest site. Angie’s nest was monitored on the 1st, 11th and the 21st June when all five chicks were developing well. The chicks left the nest sometime towards the end of the month. (Locations are not shown on the tracking map).
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Ranging area of Angie (blue) during the period 1st to 23rd July. |
01-31 July 2009
Up to the 22nd July Angie continued to range over an enormous area around her nest site where she was tracked over an area of 530 km2, though within this range she favoured two widely separated localities. Early on the 23rd July Angie departed from the general breeding area and by the end of the day she had travelled 160 km to the southwest. The following day she changed direction and travelled 165 km to the northwest. On the 25th July Angie continued to wander and ended the day 75 km east. Her eastward movement continued and by the end of the 26th July she had travelled a further 165 km. On the 27th July Angie moved 50 km South-east and she remained in an area near Govi-Ugtaal, Dundgovi aimag for two days before travelling a further 75 km southeast to an area near Bayanjargalan, Dundgovi aimag where she remained until the end of the month (See tracking map)
01-31 August 2009
On the 1st August Angie moved 185 km southeast and continued moved in the same direction towards the Chinese border, when on the 3rd August she turned northwest, travelling 225 km to an area near Ayrag, Dornogovi aimag. On the 4th August Angie’s wandering behaviour continued and on the 5th August she had returned to the general breeding area of the Artificial Nest Experimental Area, 195 km to the northwest. She remained in this area until the end of the month. (See tracking map)
01 September - 31 october 2009
Angie stayed in the general breeding area. (Data not shown on tracking map).
01 - 30 November 2009
Angie left the breeding area on the 13th of
November and crossed the southern border of Mongolia 2 days later. Angie
travelled a further 1200km and arrived on the south eastern border of Qinghai,
China on the 26th of November, where he remained for the rest of the
month.
Helen
Helen is an adult female trapped and tagged at her breeding territory on the 13th May 2009, when her nest (Artificial Nest H12) held a clutch of five eggs. This was a newly occupied territory, established in 2009.
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| Helen’s ranging area (pink) during May. Artificial nests (green) are placed at 1 km intervals. |
During May Helen ranged over a limited area in her nesting territory with her GPS locations covering an area of 6 km2 and being no further than 2.8 km from her nest. Helen’s nest was monitored on the 25th May when it was discovered that the clutch was deserted. The tracking data shows that from the 17th May Helen spent a lot of time at the adjacent artificial nest. (All locations were within the general breeding area and are not shown on the tracking map).
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| Helen’s ranging area (pink) during June. Artificial nests (green) are placed at 1 km intervals. |
Helen remained in her breeding territory despite having deserted her nest, though it was clear from the GPS locations that she was now spending a significant amount of time at the artificial nest adjacent to the one where she had nested. Most of her ranging behaviour was concentrated to the north of this new location, avoiding encroachment on to neighbouring Saker territories with nest 1 km to the south and 2.2 km to the southeast. (All locations were within the general breeding area and are not shown on the tracking map).
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| Helen’s ranging area (pink) during July. Artificial nests (green) are placed at 1 km intervals. |
During July Helen ranged over a very limited area within her breeding territory, with her GPS locations only covering an area of 3 km2. (All locations were within the general breeding area and are not shown on the tracking map)
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Helen’s ranging area (pink) during August (excluding excursion outside the general nesting area). Artificial nests (green) are placed at 1 km intervals. |
In August, Helen again ranged over a very limited area (15 km2), spending most of her time within a kilometre of her newly adopted artificial nest. She made two excursion from the general breeding area, travelling 40 km southeast on the 16th August and returning within a few hours, then travelling 50 km south on the 21st August and again returning within a few hours. (See tracking map)
01-30 September 2009
Helen travelled a short distance (<20km) outside of the breeding area on the 2nd and returned 4 hours later. On the 7th she travelled over 70km SW and returned early the following morning.
01-31 October 2009
Helen remained in the breeding area throughout October. (Data not shown on tracking map).
01-30 November 2009
On the 1st of November Helen was located 1600km SW of the breeding area in the southern part of the Qinghai region of China near the town of Hainan.
Galba
Galba is an adult female captured in Sukhain Toirom on 6th June 2009. Her nest was in elm tree and held four chicks.
19-30 June 2009
During the last half of June Galba ranged over an area of 155 km2 around her nest site.
01-31 July 2009
During July Galba continued to range around her breeding site but also made numerous forays to the south, travelling up to 50 km and crossing the border into China.
01-31 August 2009
In early August Galba dispersed from her breeding area moving ca. 125 km northwest to a temporary settlement area in the Ih Shanyn Mountains. On the 27th August she returned back to her breeding territory and remained there until the end of the month.
01-30 September 2009
Galba remained in her
breeding area throughout September (Data not shown on tracking map)
01-31 October 2009
On the 1st
of October Galba travelled 200km S of the breeding area and then returned back
N 150km past the breeding area on the 9th of October, where she
remained for the rest of the month
01-30 November 2009
On the 2nd
of November, Galba was located on the south eastern border of Mongolia. She
then moved 390km NE into Inner Mongolia, China, before heading 570km back SW
and then returning NE back into Mongolia.
Gobi
Gobi is an adult male who was captured at the nest in Baga Modnii Khudag on 9th June 2009. The nest was in an elm tree had two live and four dead chicks.
01-30 June 2009
In June Gobi ranged over an area of 35 km2 around his nest site.
01-31 July 2009
Up to the 19th July Gobi ranged over an area of 135 km2 around his nest site. On the 19th July he moved 160 km northeast where he stayed until the 21st July before moving a further 110 km north to settle near Ondershil, Dundgovi aimag until the end of the month.
01-31 August 2009
Gobi remained in the Ondershil area until the 22nd August and then made the 250 km journey southeast back to his breeding area where he remained until the end of the month.
Gobi remained in and around his breeding area throughout September
01-31 October 2009
Gobi travelled 250km SW out of Mongolia on the 1st of October, before returning NE back into Mongolia on the 5th of October. She continued to fly NE arriving at the border of China on October the 9th. This is the last transmission we have recieved for this bird indicating that either the PTT has failed, or the bird has died.
Zaluu
Zaluu is one of two juveniles from a nest in Baga Modnii Khudag. She was a healthy young female trapped and satellite tagged on 24th July 2009. Picture shows breeding habitat in the Small Gobi B Strictly Protected Area.
26-31 July 2009
Zaluu stayed close to her nest site until the end of the month.
01-31 August 2009
Zaluu stayed in her natal area until the 9th August, when she embarked on a looping dispersal movement first heading southeast into China then west and north back into Mongolia eventually to reach a point ca. 345 km north of her natal area by the 12th August. Zaluu remained in this area near Deren, Dundgovi aimag until the end of the month.
1-30 September 2009
Zaluu remained in this
area near Deren, Dundgovi aimag until September the 27th when she began
travelling SW.
1-31 October 2009
By the 1st
of October, Zaluu had crossed the southern border of Mongolia into China. She
continued 400km SW into the Qinghai region and was located on the SW border of
Qinghai on the 29th of October.
1-30 November 2009
On the 22nd
of November Zaluu travelled 150km NE from the S border of Qinghai. She was
located a further 50km west on the 24th and returned back to the
southern border 2 days later. She was
then located 170km further N towards central Qinghai.