Chordeiles virginianus, the Nighthawk or Bull-bat.
Bird Migration (Cooke), pages 5, 7, 9.
Nature Sketches in Temperate America (Hancock), pages 246-48.
Birds in their Relation to Man (Weed and Dearborn), pages 178-80.
Bird-Lore, vol. 20 (1918), page 285.
Educational Leaflet No. 1. (National Association of Audubon Societies.)
THE LOST DOVE
Ectopistes migratorius, the Passenger Pigeon.
"How can a billion doves be lost?"
History of North American Birds (Baird, Brewer and Ridgway), vol. 3, pages 368-74.