Birdlife of the Churchill Region: Status, History, Biology
Jehl, Joseph R.
Great Plains Birds
Best Places to Bird in the Prairies
Acorn, John, Nicola Koper and Alan Smith
Woody Plants of the Northern Forest: Quick Guide
Woody Plants of the Northern Forest: A Photographic Guide
A Manual for the Identification of the Birds of Minnesota and Neighboring States
Roberts, Thomas S.
Birds of Canada
Hoar, Tyler; De Smet, Ken; Kennedy, Gregory
Manitoba Bird Checklist
ABA Regional Checklist: Central and Northern Canada