Nesting Birds of the Black Forest, Colorado

In 'The Condor: Journal of the Cooper Ornithological Club.' Volume 50, No. 2, March-April, pp 49-96,1948. Complete number with additional articles including: Nesting of Some Passerine Birds in Western Alaska by Walkinshaw, Some Geographically Variable Birds Occurring in Utah by Behle. Color frontispiece Pied-billed Grebe by Allan Brooks.