Origin and Relatives
• The Eurasian Siskin, C. spinus is the ancestor of Pine Siskin, Antillean Siskin, C. dominicensis, and Black-capped Siskin, C. atriceps. The sub-species C. pinus perplexus may be closer to C. atriceps; they both thrive in the Guatemalan-Mexican altiplano.
Read more about this topic: Pine Siskin
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