(en) Poole, Earl L., « Weight and Wing Area in North American Birds », The Auk, University of California Press on behalf of the American Ornithologists Union, vol. 55, no 3, , p. 511-517 (ISSN1938-4254 et 0004-8038)
worldcat.org
Podulka, Sandy, Ronald W. Rohrbaugh, Rick Bonney, et Cornell University. Laboratory of Ornithology., Handbook of bird biology, Ithaca, N.Y.Princeton, N.J., , pagination multiple (ISBN9780938027553, OCLC57003728)
