The Open Ornithology Journal

2008, 1 : 46-47
Published online 2008 December 5. DOI: 10.2174/1874453200801010046
Publisher ID: TOOENIJ-1-46

What Might have been the Ancestor of New World Siskins?

Antonio Arnaiz-Villena , Valentin Ruiz-del-Valle , Raquel Reguera , Pablo Gomez-Prieto and Juan Ignacio Serrano-Vela
Departamento de Inmunologia, Facultad de Medicina, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrird, Spain.

ABSTRACT

Eurasian Carduelis spinus (siskin) has given rise to the C.pinus (pine siskin) North American radiation,which includes C.dominicensis, C.p. perplexus and C.atriceps .

It is addressed the question why C.spinus is not thriving now in America.