12 
Brooks, Allan, and Swarth, Harry S. 
1925. “A Distributional List of the Birds of British Columbia;” Pacific Coast Avi- 
fauna Number 17, Cooper Ornith. Club, Berkley, Cal. 
Ascribes calurus to the province, but states that birds of krideri type have 
been taken in northern parts and in migration in Okanagan region. 
Brooks, Allan 
1927. “Notes on Swarth’s Report on a Collection of Birds and Mammals from the 
Atlin Region;” Condor, vol. XXIX, 1927, pp. 112-114. 
Some emendations and criticism of the treatment of this and some other 
species in Swarth 1926. 
Bryant, Dr. Henry 
1862. “Remarks on the Variations of Plumage in Buteo borealis Aud. and Buteo 
harlani Aud.; ” Proc. Boston Soc. of Nat. Hist., vol. VIII, pp. 107-119. 
Burleigh, Thos. D. 
1923. “Notes on the Birds of Clark’s Fork, Bonner County, Idaho;” Auk, vol. XL, 
pp. 653-665. 
Calurus nesting. 
Butler, A. W. 
1897. “The Unusual Occurrence of Brunnich’s Murre ( Uria lomvia ) Far Inland, with 
Notes on Other Rare Birds;” Auk, vol. XIV, p. 200. 
Occurrence of Harlan’s Hawk in Indiana. The only date given is Sept- 
ember. 
Bruner, Lawrence, Wolcott, Robert H., and Swenk, Myron H. 
1904 (?). “A Preliminary Review of the Birds of Nebraska;” Klopp and Hartlett 
Co., Omaha, Neb. 
Borealis chiefly eastern half of state, krideri chiefly western half, calurus 
in migrations over entire state, may breed, harlani casually over eastern third, 
not known to breed. 
Cameron, E. S. 
1907. “The Birds of Custer and Davenport Counties, Montana;” Auk, vol. XXIV, 
p. 262. 
Spring specimen of B. b. harlani reported from North Dakota and identified 
in life twice in above locality Aug. 25, only date given. 
Cassin, J. 
1855. “Notes on North American Falconidae with Description of New Species;” 
Proc. Acad. Nat. Sci., Phila., vol. VII, p. 281. Original description of 
Buteo calurus. 
1856. “Description and Notes on Birds in the Collection of the Academy of Natural 
Sciences of Philadelphia and in the National Museum, Washington;” Proc. 
Acad. Nat. Sci., Phila., vol. VIII, pp. 253-256. 
Describing proposed species Buteo cooperi. 
Cooke, Wells W. 
1888. “Report on Bird Migration in the Mississippi Valley in the years 1884 and 
1885;” U.S. Dept. Agr., Div. Economic Ornith., Bull. No. 2, Washington. 
Borealis attributed to Manitoba and Mississippi valley as breeder. Breed- 
ing record for krideri in Minnesota, Harlani reported only as far north as 
Illinois and Iowa. 
1914. “Some Winter Birds of Oklahoma;” Auk, vol. XXXI, pp. 473-493. Borealis 
a common winter resident. 
1915. “Bird Migration in the Mackenzie Valley;” Auk, vol. XXXII, pp. 442-459. 
Page 447 attributes borealis as breeding bird to Mackenzie valley and by 
implication to northern parts of Prairie Provinces. 
Coues, Elliot 
1874. “Birds of the Northwest;” U.S. Geol. Surv. of the Territories, Misc. Pub. No. 
3, Washington, pp. 352-354. Discusses all forms of species. Suggests that 
Audubon’s bird may be calurus. 
1903. “Key to North American birds” (fifth edition); Dana Estes and Co., Boston, 
vol. II, pp. 682-685. 
Grinnell, Joseph 
1909. “The 1907 Alexander Alaska Expedition — The Birds,” pp. 211-212; Univ. of 
Cal. Pub. in Zool., vol. 5, No. 2. Original description of Buteo borealis 
cdascensis. 
