Highly pathogenic avian influenza (HPAI) viruses of the A/Goose/Guangdong/1/1996
lineage (GsGd), which threaten the health of poultry, wildlife and humans, are spreading …

254—PErSPEctivES in ornithology— Auk, vol. 125 movements in seabirds (eg, Anderson
and Ricklefs 1 87). This technology has severe limitations in location precision and range …

According to migration theory and several empirical studies, long‐distance migrants are
more time‐limited during spring migration and should therefore migrate faster in spring than …

The Canadian Arctic hosts millions of marine birds annually, many of which aggregate in
large numbers at well-defined sites at predictable times of the year. Marine habitats in this …

Faster migration in spring than in autumn seems to be a common pattern in birds. This has
been ultimately explained by seasonally different selection pressures. Variation in migration …

Conspecific brood parasitism (CBP) is a reproductive tactic in which parasitic females lay
eggs in nests of other females of the same species that then raise the joint brood. Parasites …

For birds, unpredictable environments during the energetically stressful times of moulting
and breeding are expected to have negative fitness effects. Detecting those effects however …

A monograph of the Common Eider, a large and familiar duck with a long and fascinating
cultural history. A common sight around the more northerly shores of the British Isles, the …

Although physiological traits and phenology are thought to be evolved traits, they often show
marked variation within populations, which may be related to extrinsic factors. For example …

Light-induced bird strikes are known to occur when vessels navigate during darkness in icy
waters using powerful searchlight. In Southwest Greenland, which is important …