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Nesting Ecology Of The Double-Crested Cormorant (Phalacrocorax Auritus Auritus) On Utah Lake, Ronald M. Mitchell
Nesting Ecology Of The Double-Crested Cormorant (Phalacrocorax Auritus Auritus) On Utah Lake, Ronald M. Mitchell
Theses and Dissertations
Research on the nesting of the Double-crested Cormorant (Phalacrocorax auritus auritus) was undertaken to determine the nesting ecology of the bird on Utah Lake, Utah County, and the possible effects that diking Provo Bay would have on the cormorants breeding there. In 1973, two colonies in Provo Bay were visited weekly to determine laying dates, incubation period, clutch size, and hatching dates. Another colony, located on the dike of the Geneva Steel Reservoir, was visited daily during the spring and summer of 1973. At this colony, egg-laying occurred from 13 April to 17 May. The average clutch size was 3.8, …