60 BIRDS OF MAINE. 



Genus BUTEO Cuvier. 



146. (337). Buteo borealis (GmeL). Red- tailed Hawk. 



Of quite general occurrence throughout the state in spring, sum- 

 mer, and autumn. A few are said to remain in the southern coun- 

 ties through the winter, but the majority retire southwards at the 

 approach of cold weather. 



County Kecords. Androscoggin, "rare summer resident, common 

 migrant" (Johnson) ; Aroostook, "common at Houlton" (Batehelder, 

 Bull. Nutt. Orn. Club, Vol. 7, p. 151) ; Cumberland, "common resident'* 

 (Mead) ; Franklin, "common summer resident" (Swain) ; Hancock, 

 "summer resident" (Dorr) ; Kenuebec, "rare" (Gardiner Branch) ; Knox, 

 "migrant'' (Rackliff ) ; Oxford, "breeds" (Nash) ; Peuobscot, "a not 

 uncommon summer resident" (Knight) ; Sagadahoc, "scattering, fall, 

 winter, and spring" (Spinney) ; Waldo, "summer resident" (Spratt) ; 

 Washington, "not uncommon summer resident, (Boardman) ; York, 

 (Adams). 



147. (339). Buteo lineatus (GmeL). Red-shouldered Hawk. 

 This species is a fairly common summer resident, through most 



parts of the state. It has not been reported as wintering here. 



County Records. Androscoggin, "common summer resident" (John- 

 son") ; Cumberland, "common summer resident" (Mead) ; Franklin, 

 "common summer resident" (Swain) ; Hancock, "summer resident" 

 (Dorr); Kennebec, "common" (Powers); Knox, "migrant" (Rackliff); 

 Oxford, "breeds rarely" (Nash i ; Peuobscot, "a not uncommon summer 

 resident" (Knight) ; Piscataquis, "rare" (Homer) ; Sagadahoc, "common 

 migrant spring and fall" (Spinney) ; Somerset, "common summer resi- 

 dent" (Morrell;) Waldo, CSpratt) ; Washington, "not uncommon summer 

 resident" (Boardman); York, "breeds" (Adams . 



Subgenus TACHYTRIORCHIS Kaup. 



148. (342). Buteo swainsoni Bonap. Swainson's Hawk. 

 An accidental visitor from the west, of which a number of speci- 

 mens have been taken, all being melanistic. 



County Records. Hancock, "one taken at Gouldsborough September 

 15, 1886" (Cf. Brewster, Auk, Vol. 5, p. 424) ; Penobscot, "one at Glen- 

 burn, May 19, 1888" (Cf. Brewster, Ibid, Vol. 5, p. 424), "have seen at 

 least two taken here, both melanistic" (Hardy) ; Washington, "taken at 

 Calais, about October 8, 1892" (Cf. Brewster, Auk, Vol. 10, p. 82). 



149. (343). Buteo latissimus ( Wils.). Broad- winged Hawk. 

 A quite common summer resident in most portions of the state. 



