Breeds near ponds and lakes in forested areas (Alexander et al. 2003). In B.C., nests in both coniferous (spruce) and deciduous (aspen and black cottonwood) forests in tree and other natural cavities. Most nesting sites were on or near the edge of a wetland, but ranged from 3 to 440 m from water (Campbell et al. 1990).
Alexander, S. A., F. I. Doyle, C. D. Ecker, H. Grünberg, N. L. Hughes, M. Jensen, I. Johnson, D. H. Mossop, W. A. Nixon, and P. H. Sinclair. 2003. Birds of the Yukon Territory (P. H. Sinclair, W. A. Nixon, C. D. Eckert, and N. L. Hughes, eds.). UBC Press, Vancouver, B.C.
Campbell, R. W., N. K. Dawe, I. McTaggart-Cowan, J. M. Cooper, G. W. Kaiser, and M. C. E. McNall. 1990. The Birds of British Columbia. Vol. 1 and 2, Nonpasserines. UBC Press, Vancouver, B.C.