Frank Bennington Gill (born October 2, 1941 in New York City) is an American ornithologist with worldwide research interests and birding experience.
"[3] After Gill received his PhD in zoology from the University of Michigan in 1969 (where he had also completed his undergraduate degree), he joined the ornithology department at the Academy of Natural Sciences in Philadelphia.
From 1969 to 1995, Gill was a full-time staff member of the academy, where he held various positions throughout his tenure, including that of chairman for the Department of Ornithology and vice president for systematics and evolutionary biology.
His worldwide research programs included field studies of island birds, hybridization by blue-winged and golden-winged warblers, flower-feeding strategies of sunbirds of Africa and of hermit hummingbirds of Middle America, and phylogeny through DNA of the chickadees of the world.
[4] Additionally, Gill is an elected member of the International Ornithological Congress, as well as the co-author, with Minturn Wright, of Birds of the World: Recommended English Names (2006).