To which family of birds does the Siskin belong?
Pine siskin This siskin seems to belong to the North American Spinus/Carduelis evolutive radiation, whose parental species is the Eurasian siskin. This finch may have displaced from America to the parental species Eurasian siskin. Pine siskin The pine siskin ("Spinus pinus") is a North American bird in the finch family. It is a migratory bird with an extremely sporadic winter range. These birds are fairly small, being around the same size as the widespread American goldfinch. In both sexes, total length can range from , with a wingspan of and weight of . Adults are brown on the upperparts and pale on
Pine siskin culmen. There is a green morph of pine siskin, closer in appearance to Eurasian siskin; these birds make up only 1% of the population. These are closer in appearance to female Eurasian siskin, but differ in that they have a yellow wash on the undertail-coverts (white on Eurasian siskin), no yellow in the supercilium, reduced underparts streaking, and much yellow at the base of the tail and remiges; there may also be a difference in the extent of yellow in the underparts but this needs further study. Their breeding range spreads across almost the entirety of Canada, Alaska and, to