PINE SISKIN (Spinus pinus)
Title: Birds and nature in natural colors.
Year: 1913 (1910s)
Source book page: https://archive.org/stream/birdsnatureinnat04unse/birdsnatureinnat04unse#page/n204/mode/1up
Source: https://commons.wikimedia.org/wiki/File%3ABirds_and_nature_in_natural_colors._%281913%29_%2814728992906%29.jpg
The pine siskin (Spinus pinus) is a North American bird in the finch family. Spinus pinus is a migratory bird with an extremely sporadic winter range. These siskins are fairly small, being around the same size as the widespread American goldfinch. The pine siskin in its typical morph is a drab bird, whereas the Eurasian siskin (a bird the species does not naturally co-exist with), in many plumages, is much brighter. Adult male Eurasian siskins are bright green and yellow with a black cap, and an unstreaked throat and breast; the pine siskin does not have a corresponding bright plumage.
