One of the most common winter sparrows, the white-crowned typically occurs in flocks, which may involve more than 100 birds. They feed in short grass or open areas adjacent to woodlands ...

There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...

What is the white-backed vulture? The white-backed vulture is the most common and widespread vulture in sub-Saharan Africa. It is recognizable by its dark-brown face, long, white neck, and of ...