Costs of migration, in terms of time, energy, and mortality risk, have a strong theoretical and
empirical foundation in the study of birds. We expect these costs to be most severe for …

Many waders journey annually within the Eurasian–African migration system. Among them
we distinguish short-and medium-distance migrants that travel between their breeding …

Feather wear is the natural degradation and breakage of feather structure during the interval
between moults. Different rates of feather wear have been observed for primaries of free …

In the annual cycle of migratory birds, temporal and energetic constraints can lead to carry‐
over effects, in which performance in one life history stage affects later stages. Bar‐tailed …

I examined over 4500 specimens to investigate the evolutionary significance of molt
sequences as related to systematic relationships of falcons and parrots. Nodes of molt …

The sharp-tailed sandpiper (Calidris acuminata) is a long-distance migrant that travels each
year from breeding grounds in the Russian Arctic to nonbreeding areas in Australasia. Most …

Population-level insights into how a species incorporates moult into its annual cycle is an
important component of understanding the time constraints on the migration system of the …

Migrant waders using freshwater habitats are hypothesized to have slower primary moult
than waders using coastal habitats. We chose the Wood Sandpiper Tringa glareola as a …

We compared the primary molt of the 4 species of skuas and jaegers (Stercorariidae) that
breed in the Northern Hemisphere: Long-tailed Jaeger (Stercorarius longicaudus), Parasitic …

Resident species typically undergo post-nuptial moult directly following breeding, whereas
long-distance migrant species usually do so after arrival at staging or non-breeding …