Researchers at the University of Granada and the Max Planck Institute for Biological Intelligence have demonstrated a link ...

Sometimes the dull brown female cowbird can be confused with a catbird. Catbirds are gray birds with pointier beaks and dark ...

The first brown bird that might come to mind is the sparrow, and several species come to my feeder. The house sparrow is common in cities and suburbs. Males have a gray head, black bib and light ...

For bill color, see sidebar below; whitish throat; brownish upperparts; mostly pale gray underparts. Adult: black-and-white striped crown. Immature: tan and brownish head stripes. Juvenile: Brown ...

We suspect that brown birds are at a disadvantage in a rather grey city. The predominant colours of a city and the lack of suitable habitats can therefore determine which bird species are ...