NATURAL SCIENCES OP PHILADELPHIA. 101 



Consp., 1850, 19; Pr. Ac. Nat, Sc. Phil., 1855, 280. Heerm., Pac. 

 R. R. Rep., II., 1855, 32. Cassin, Pr. A. N. S. Phil., 1855, 280; 

 B. Cal., Tex., etc., 1855, 98 ; B. N. Am., 1858, 19, pi. XIII. Strickl., 

 Orn. Syn., I., 1855, 30. Gamb., Jour. Ac. N. Sci. Phil., 18 I., 27. 

 Blakist., Ibis, 1861, 317 (eggs). Pelz. Verb. z.-b. Wien, 1862, 150. 

 Dresser, Ibis, 1865, 324 (Texas). Coues, Prod., 1866, 9 ; Key, 1872, 

 217 ; Am. Nat., 1874 (habits). Gray, Hand List, I., 1869, 7. Coop., 

 B. Cal., 1870, 476. Ridgw., Pr. Ac. Nat. Sci. Phila., 1870, 142 ; B. 

 B. & R., Hist. N. Am. B., III., 1874, 263 ; Pr. Boston Soc. N. H., 

 May, 1873, 27. Sci. & Salv., Nom. Neotr., 1873, 119. #(^0 mon- 

 tanus, Nutt., Man. I., 1840, 112. Buteo bairdii, Hoy, Pr. Ac. 

 Nat. Sci. Philad., 1853, 451 (young). Cassin, B. Cal., Tex., etc., 



1854, pi. XLI. ; B. N. Am., 1858, 21. Strickl., Orn. Syn., I., 1855, 

 37. Gray, Hand List, I., 1869, 8. Buteo insignatus, Cass., B. Cal., 

 Tex., etc., 1854, 102, pi. XXXI. (melanistic phase) ; B. N. Am., 

 1858, 23. Heerm., Pac. R. R. Rep., VII., 1857, 31. Strickl., Orn. 

 Syn., I., 1855, 38. Sci., P. Z. S., 1856, 285. Coues, Pr. Ac. Nat. 

 Sci. Philad., 1866, 45. Bryant, Pr. Boston Soc. N. H., X., 1865, 90. 

 Sci., Ibis, I., 216 (Guatemala). Gray, Hand List, I., 1869, 8. Cooper, 

 Orn. Cal., I., 1870, 474. Buteola insignata, Bonap., Comp. Rend., 

 XLIL, 1856, 956. Buteo oxypterus, Cass., Pr. Ac. Nat. Sc, VII., 



1855, 282 (young) ; B. N. Am., 1858, 30, pi. 15, fig. 2. Strickl., Orn. 

 Syn., I., 1855, 28. Coues, Pr. Ac. Nat. Sci. Philad., 1866, 45 ; Key, 

 1872, 218. Gray, Hand List, I., 1869, 8. Cooper, Orn. Cal., I., 1870, 

 480. Buteo swainsoni var. oxypterus, Ridgw., B. B. & R. Hist. N. 

 Am. B., III., 1874, 266. Buteo fuliginosiis, Sci., Pr. Zool. Soc, 

 Lond., 1858, 356 ; Trans. Zool. Soc, 1858, 267, pi. LXII. ( ad., mela- 

 nistic phase). Cass., B. N. Am., 1858, pi. 15, fig. 1. Salv., Ibis, 

 1860, 401. Gray, Hand List, I., 1869, 7. Ridgw., Pr. Ac Nat. Sci. 

 Philad., Dec. 1870, 142. Buteo gutturalis, Max., Caban. Journ., VI., 

 1858, 17 (eggs). "Buteo Jiarlani, Aud." Bryant, Pr. Boston Soc. N. 

 H. VIII., 1862, 115 " Buteo albonotatus, Kaup," Lawr. Ann. N. 

 Y. Lye IX., April, 1868, 133 (nee Kaup). "Buteo albicaudatus, 

 Vieill.,' 1 Sci., P. Z. S., 1869, 634, No. 22 (Buenos Ayres). Buteo 

 obsoletus, Sharpe, Cat. Ace Brit. Med., 1874, 184 (nee Falco obsoletus, 

 Gm., 1788 !). 



Habitat. Found chiefly in the Western Province of North 

 America, where it is a very abundant species, but an occasional 

 visitant to portions of the Eastern Province (chiefly north of the 

 Great Lakes and the St. Lawrence River), and straggling into 

 South America, as far as Patagonia. All portions of the Western 

 Province of North America, from Mazatlan, Mexico, to the Yukon 

 in Alaska, and from the Pacific coast eastward to the eastern base 

 of the Rocky Mountains (National Museum) ; interior of British 

 America north to the fifty-seventh parallel (Swainson & Richard- 



