Subspecies European goldfinch






^ gill, frank; donsker, david (eds.). finches, euphonias . world bird list version 5.3. international ornithologists union. retrieved 23 july 2015. 
^ clement, p. european goldfinch (carduelis carduelis) . in del hoyo, j; elliott, a.; sargatal, j.; christie, d.a.; de juana, e. handbook of birds of world alive. lynx edicions. (subscription required)






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