Study of Cassin's Finches by UNC

"University of North Carolina researchers said Cassin's finches, which breed in California, displayed frugality in singing the most when they lost a prospective mate, but singing very little when they already had a mate or when females were unlikely to be nearby." Editorial Comment: Proof positive that the "male" Cassin's Finch is no dummie. Not making the mistake that I often have.