William Harroun Behle (May 13, 1909 – February 26, 2009) was an American ornithologist from Utah. He published around 140 papers on the biogeography and taxonomy of birds, focusing largely on birds of the Great Basin. Behle was born in Salt Lake City on May 13, 1909, the second of three children of parents Augustus Calvin Behle, a surgeon, and Daisy May Behle. William studied at the University of Utah, earning a B.A. in 1932 and M.A. in 1933, then pursued doctoral work at the University of California, Berkeley, under Joseph Grinnell, earning a PhD in 1937. Aside from four summers as a naturalist at Grand Canyon National Park, he spent the majority of his career as a professor at the University of Utah, where he worked from 1937 until his retirement in 1977, and continued to perform researc