Swedish naturalist Carl Linnaeus coined the binomial name Columba macroura for both the mourning dove and the passenger pigeon in the 1758 edition of his work Systema Naturae (the starting point of biological n… See more

The passenger pigeon was sexually dimorphic in size and coloration. It weighed between 260 and 340 g (9.2 and 12.0 oz). The adult male was about 390 to 410 mm (15.4 to 16.1 in) in length. It had a bluish-gray head, … See more

The passenger pigeon was found across most of North America east of the Rocky Mountains, from the Great Plains to the Atlantic coast in the east, to the south of Canada in the north, and the north of Mississippi … See more

The passenger pigeon was nomadic, constantly migrating in search of food, shelter, or nesting grounds. In his 1831 Ornithological Biography, American naturalist and artist John James Audubon described … See more