The bullfinch is a truly remarkable bird. Its striking colors are reason enough to adore it but, what's more, male bullfinches can be trained to sing any song you like, provided you are willing to ...

This is a preview. Log in through your library . Abstract The sperm of the Eurasian Bullfinch (Pyrrhula pyrrhula) differs markedly in gross morphology from that of all other passerines examined to ...

The Barbados bullfinch and Carib grackle can pass the popular animal cognition test of string-pulling, but this ability may be unrelated to performance on six other cognitive tests, according a study ...

Generalist birds are thought to be less neophobic than specialists, but the dietary difference is often confounded by differences in experience and food availability. We conducted field tests with an ...