Faanes, Craig A. Birds of the St. Croix River Valley, Minnesota and Wisconsin / [electronic resource] Birds of the Saint Croix River Valley, Minnesota and Wisconsin / by Craig A. Faanes.. — Washington, D.C. : : U.S. Dept. of the Interior, Fish and Wildlife Service,, 1981.. — 196 p. : : maps ; 23 cm. - North American fauna ; no. 73.