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Timing of autumn migration and biometric characteristics of migrating populations of European Robin (Erithacus rubecula L., 1958) in North-Eastern Poland

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Polakowski M., Jankowiak L.

Polish Journal of Ecology

2012

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nr 4

We studied the autumn migration of the European robin (Erithacus rubecula) through north-eastern Poland. During the study period 2002–2004 we analysed a total of 2375 individuals: 1991 first-year birds and 349 adults. First-year birds had shorter wings than adults. Body condition was influenced by age, year of migration fat content and arrival time. Our results show that first-year birds arrived earlier, had low-fat levels and were in a comparatively poorer body condition to that of the adults and were less effective foragers. Stopover length decreased during the migration season for both age groups as a result of rush to their wintering areas because of winter approach. We found that adult females arrived later than adult males.

Foraging range and habitat use by Aquatic Warblers Acrocephalus paludicola during a fall migration stopover

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Provost P., Kerbiriou C., Jiguet F.

Acta Ornithologica

2010

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nr 2

Ograniczanie wyników

1 Acta Ornithologica

1 Polish Journal of Ecology

1 Jankowiak L.

1 Jiguet F.

1 Kerbiriou C.

1 Polakowski M.

1 Provost P.

1 2012

1 2010

Wyniki wyszukiwania

Timing of autumn migration and biometric characteristics of migrating populations of European Robin (Erithacus rubecula L., 1958) in North-Eastern Poland

Foraging range and habitat use by Aquatic Warblers Acrocephalus paludicola during a fall migration stopover