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SITE NAME
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Rauchua River middle reaches, Chukotsky Peninsula, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (843)2729429 // krechet@telebit.ru // A.Kutuya 10-73, Kazan, 420073, Russia
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PROJECT DETAILS |
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Project name:
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Studies of autumn bird migration
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Start of survey:
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End
of survey: |
Team
size: |
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28.08
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30.09
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2
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WEATHER
CONDITIONS
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Weather conditions: |
| The first snowfall occurred on 1-2.09, when air temperatures dropped to -5øC. Prolonged rains followed, and warm weather established until 20.09. Autumn was very late according to reports of local people.
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| Date of ice-break on
rivers: |
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| Date of final loss of
snow: |
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
average
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Breeding conditions:
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| Mass migration of Sandhill Cranes was observed on 20.09, with 14 flocks of 80-100 birds passing by to the south-south-east at an interval 30-50 minutes in the first half of the day. In total approximately 1500 cranes passed on 20.09, as well as 2 flocks of Whooper Swans, 100 birds each, moved directly to the south. Daily observations at day time in the period from 28.08-30.09 yeilded the following numbers of migrating birds of prey and owls: 271 Rough-legged Buzzard, 27 Northern Harriers, 22 Gyrfalcons, 18 Peregrine Falcons, 17 Northern Goshawks, 4 Merlins, 10 Hawk Owl and 3 Snowy Owls. Noteworthy is the relatively high numbers of Northern Goshawk in a habitat which is not typical for this species.
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Rodent dynamics:
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Rodent species recorded:
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Summary
of fauna studies: |
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