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Irruptive movements and breeding dispersal of snowy owls

Tracking snowy owls has been (and still is) a great challenge. The fact that those birds are highly mobile, that they show almost no breeding site fidelity and disperse over huge distances from one year to another yet increases the challenge. The use of satellite...

South temperate birds have higher apparent adult survival than tropical birds in Africa

In the low vegetation of a nature reserve surrounding a nuclear power station on the south-west coast of South Africa, a community of passerine birds breeds at an extraordinarily high density. With up to 1,640 nests monitored and 1,255 birds banded each year...

Endozoochory largely outweighs epizoochory in migrating passerines

Migrating birds give seeds the opportunity of a lifetime: a journey they will never forget! But what’s the best way to hitchhike? In the comfort of the gut or feeling the wind on your seed coat? Find out more...

Parent–environmental interactions shape acoustic signatures in tree swallows

Acoustic signatures are common components of avian vocalizations and are important for the recognition of individuals and groups. In this study the authors investigate whether acoustic brood signatures are attributed to the genetic/maternal origins or to their rearing...

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