Alexander Wilson (Scottish-American, 1766-1813),”Plate 44 1. Passenger Pigeon. 2. Blue-mountain Warbler. 3. Hemlock W: 44.”, Passenger Pigeon (Ectopistes migratorius); Blue-winged Warbler (Vermivora cyanoptera); Pine Warbler (Setophaga pinus), From: “American Ornithology or The Natural History of the Birds of the United States”, Hand-colored copper plate engraving on paper, 1829, On loan from the collection of Dr. Michael and Elyn Stubblefield