Comprehensive Guide to Boreal Birds
 © Cephas/Wikimedia Commons (CC 3.0) Carpodacus purpureus An estimated 46% of the species' North American population breeds within the Boreal Forest. |
 © Rahul Alvares/Flickr (CC 2.0) Loxia curvirostra An estimated 9% of the species' North American population breeds within the Boreal Forest. |
 © Dominic Sherony/Wikimedia Commons (CC 2.0) Loxia leucoptera An estimated 85% of the North American population of White-winged Crossbill breeds in Canada's boreal forest. |
 © Keith/Wikimedia Commons (CC 2.0) Passer domesticus An estimated 9.0% of the species' North American breeding range lies within the Boreal Forest. |