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Editor´s Choice - Impressive seabird foraging studies

Rapid advances are now being made in the knowledge of the amazing foraging journeys undertaken also b y the smallest pelagic seabirds, thanks to the use of miniaturized geolocators (light loggers). Two impressive studies are published in this issue...

Density-dependent effects on nesting success of temperate-breeding Canada geese

Canada geese nesting in suburban environments are often considered a nuisance. However, their demographic expansion and ease of study offer the opportunity to examine important ecological processes. In this study, the authors conclude that both negative...

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...

Spring phenology and timing of breeding in short-distance migrant birds

In this impressive long-term study the authors explore if common goldeneyes can track environmental cues and adjust their breeding in response to a changing climate. At their study site in Finland the ice-out date has advanced with 2 weeks during their 24 yr study...