Vocal differences in Acorn Woodpeckers
Structure and divergence of vocal traits in the Acorn Woodpecker
Structure and divergence of vocal traits in the Acorn Woodpecker
Do birds in artificial mixed colonies overlap in their diet?
Community science data from cities on multiple continents reveal size and ecological traits that correspond to urban abundance
The Eurasian Treecreeper is well camouflaged – or is it?
Could these colour patterns function as camouflage?
Aposematism and mimicry in birds
Mountain babblers reflect more UV light than lowland babblers
A correlative study explores several hypotheses.
Pale-breasted Thrushes take advantage of buildings and adjust their incubation behavior.
How did crossbills adapt to four pine species in Spain?