Vol 'i?is XV ] Proposed Changes in the A. 0. U. Check-List. 207 



fButeo borealis umbrinus Bangs, Proc. New Engl. Zool. Club, II, July 

 31, 1901, p. 68 (Myakka, Manatee Co., Florida). Revived as a 

 subspecies. (Peters, Bull. Mus. Comp. Zool., LXI, No. 11, Oct., 

 1917, p. 400.) Range: Florida, Cuba, and Isle of Pines. 

 fButeo platypterus iowensis B. H. Bailey. New subspecies. Bailey, 

 The Auk, XXXIV, No. 1, Jan., 1917, p. 73 (Eagle Lake, Hancock 

 County, Iowa.) 

 fTachytriorchis Kaup. Recognized as a genus (Cf. Chubb, Birds Brit. 

 Guiana, I, 1916, p. 231). Contains one North American species now 

 in the genus Buteo: 



Tachytriorchis albicaudatus sennetti (Allen). 

 fButeola Bonaparte. Recognized as a genus. (Cf. Chubb, Birds Brit. 

 Guiana, I, 1916, p. 236.) Buteo brachyurus Vieillot therefore becomes: 

 Buteola brachyura (Vieillot). 

 fHaliaeetus albicilla brooksi Hume. Haliaetus brooksi Hume, Ibis, ser. 

 2, VI, No. XXIII, July, 1870, p. 438 (Upper India). Alaskan speci- 

 mens of Haliceetus albicilla belong to this race. (Cf. Clark, Proc. 

 U« S. Nat. Mus., XXXVIII, April 30, 1910, p. 57.) 

 fRhynchodon Nitzsch. Recognized as a genus. (Cf. Mathews, List 

 Birds Australia, 1913, p. Ill; Birds Australia, V, pt. 2, Feb. 29, 1916, 

 pp. 223-224.) Includes three North American forms now in the genus 

 Falco : 



Rhynchodon peregrinus peregrinus (Tunstall). 

 Rhynchodon peregrinus anatum (Bonaparte). 

 Rhynchodon peregrinus pealei (Ridgway). 

 fTinnunculus Vieillot. Recognized as a genus. (Cf. Mathews, Birds 

 Australia, V, pt. 2, Feb. 29, 1916, pp. 223-224.) Includes the follow- 

 ing North American forms now in the genus Falco: 



Tinnunculus columbarius columbarius (Linnaeus). 

 Tinnunculus columbarius suckleyi (Ridgway). 

 Tinnunculus columbarius richardsonii (Ridgway). 

 Tinnunculus columbarius eesalon (Tunstall). 

 Falco sesalon Tunstall becomes Tinnunculus columbarius aesalon 

 (Tunstall), by reason of subspecific relationship with Tinnunculus 

 columbarius. (Cf. Hartert, Jourdain, Ticehurst and Witherby, Brit s 

 Birds, IX, No. 1, June 1, 1915, pp. 5-6.) 

 fRhynchofalco Ridgway. Recognized as a genus. (Cf. Mathews, 

 Birds Australia, V, pt. 2, Feb. 29, 1916, p. 223.) Includes one species 

 now in the genus Falco: 



Rhynchofalco fuscocoerulescens septentrionalis (Todd). 

 Asio wilsonianus (Lesson) becomes Asio otus wilsonianus (Lesson). 

 (Cf. Hartert, Vogel palaarkt. Fauna, Heft VIII, [Band II, Heft 2], 

 August, 1913, p. 987.) 

 Speotyto cunicularia floridana Ridgway becomes Speotyto flori- 

 dana Ridgway. (Cf. Ridgway, Bull. U. S. Nat. Mus., No. 50, pt. 

 VI, 1914, pp. 814, 820.) 



