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- Chapman, Frank M. (Frank Michler), 1864-194551
- National Audubon Society42
- Peterson, Roger Tory, 1908-199634
- U.S. Fish and Wildlife Service33
- American Ornithologists' Union28
- Rand, Austin Loomer, 1905-198226
- American Museum of Natural History24
- Wetmore, Alexander, 1886-197823
- Bangs, Outram, 1862-193221
- Chicago Natural History Museum21
- Ali, Sálim, 1896-198720
- Coues, Elliott, 1842-189920
- Audubon, John James, 1785-185119
- Bent, Arthur Cleveland, 1866-195419
- Canadian Wildlife Service19
- Sinclair, Ian, 1948-19
- Smithsonian Institution19
- Grinnell, Joseph, 1877-193918
- International Council for Bird Preservation18
- Schouteden, H.18