Stable isotope analysis is one of the most widely used techniques to estimate trophic
position and provides fundamental insight into the structure and management of ecological …

Long distance migrants are declining more rapidly than residents, with birds that breed in
Europe and winter in tropical Africa providing particularly clear examples. Causal …

Ornithologists use many methods to advance understanding of birds and inform
conservation strategies. These include field methods (eg censusing, ringing), laboratory …

Wood Warblers Phylloscopus sibilatrix have declined considerably throughout most of their
north and western breeding range in Europe but the causes of this decline are unknown …

Previous studies have linked winter habitat with subsequent breeding phenology and
physical condition of migratory birds, but few have found delayed effects of winter habitat on …

Carry-over effects from one stage of the annual cycle to subsequent stages can have
profound effects on individual fitness. In migratory birds, much research has been devoted to …

Capsule: Breeding success in female Pied Flycatchers Ficedula hypoleuca is related to
isotopic signature of feathers grown in Africa, suggesting wintering habitat links to breeding …

Highlights•I tested if wood warblers learn to recognize new mobbing calls from
heterospecifics.•Wood warblers learned by association from novel and known heterospecific …

Most papers on the physical condition of birds during spring migration focused on food
availability preceding migratory take-off. Only a few studies examined the effect of climate …

Stable isotope analysis has been used extensively in migratory bird studies to provide
ecological insights that may otherwise be difficult to obtain. However, an understanding of …