Remarks on the genus Buteogallus
Abstract
In September, 1959, I was able to examine the collections of the Museum Xavier Prado in Lima. Doctors Hans Wilhelm and Maria Koepcke who, since the war, have done so much for that Museum and for the natural history of Peru were with me. I noticed two hawks from Tumbez in northwestern Peru, labeled Leucopternis but which seemed to be Buteogallus, though not typical. These were later sent to New York and proved to be similar to three peculiar specimens of B. anthracinus subtilis, two from Ecuador and one from El Real, Río Tuyra, Panama, discussed by Chapman (1926, p. 233). These five birds, whether adults or immatures, differ from ordinary Black Hawks by being much paler-brownish or yellowish brown rather than black. This type of coloration is not rare in subtilis. A third specimen from Tumbez mentioned by Hellmayr and Conover (1949, p. 191) is presumably of the usual blackish type.
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References
Aldrich, J. W. and B. P. Bole, Jr. 1937. The birds and mammals of the western slope of the Azuero Peninsula. Cleveland Mus. Nat. Hist., 7:3-196.
Amadon, D. and D. R. Eckelberry. 1955. Observations on Mexican birds. Condor, 57: 65-80.
Bond, J. 1947. Field guide to birds of the West Indies. Macmillan Co., New York.
Chapman, F. M. 1926. The distribution of bird-life in Ecuador. Bull. Amer. Mus. Nat. Hist., vol. 55.
Dicky, D. R., and A. J. Van Rossem. 1938. The birds of El Salvador. Publ. Field Mus. Nat. Hist., zool. ser., vol. 23.
Haverschmidt, F. 1955. List of the birds of Surinam. Publ. Found. Sci. Res. Surinam and Netherlands Antilles, no. 13.
Hellmayr, C. E., and Conover, B. 1949. Catalogue of birds of the Americas. Part 1, No. 4. (Publ. Field Mus. Nat. Hist., zool. ser.).
Marshall, J. T., Jr. 1943. Additional information concerning the birds of El Salvador. Condor, 45:21-33.
Peters, J. L. 1931. Check-list of birds of the world, vol. I. Harvard Univ. Press, Cambridge.
Swann, H. K. 1922. A synopsis of the Accipitres. Second Edition. Wheldon and Wesley, London.
Thayer, J. H., and Bangs, O. 1905. The Vertebrata of Gorgona Island, Colombia. Bull. Mus. Comp. Zool., 46:87-102.
Twomey, A. C. 1956. A new race of Black Hawk of the species Burcogallus anthracinus from the Republic of Honduras. Ann. Carnegie Mus., art. 22, 33: 387-389.
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