62 BIRDS OF MASSACHUSETTS 



162. Accipiter atricapillus (Wils.). AMERICAN GOSHAWK. 

 An irregular winter visitant, sometimes common. According to 



Dr. J. A. Allen it may breed in the western part of the State, 

 where individuals have been seen, and Mr. C. J. Maynard 

 records a pair which spent the summer of 1868 at Weston, but 

 he was unable to find a nest. Large flights occurred in the 

 winters of i859-'6o and iSgG-'gj. 



October 20 to February 5. 



Amherst : " Not rare late in fall." Berkshire : "Rare, irregular visit- 

 ant." Bristol County: "Irregular and rather rare winter visitant." 

 Cambridge : Irregular and uncommon winter visitant. Dedham : One 

 instance. Essex County: "Resident. [?] Rare." Martha's Vineyard: 

 "A rare migrant." Springfield: "Irregular winter visitor .... not 

 generally common. Templeton : "Rare winter visitor." Wellesley : 

 "Irregular visitor in fall and winter." 



163. Accipiter velox (Wils.). SHARP-SHINNED HAWK. 



A common spring and autumn migrant, uncommon as a sum- 

 mer resident and in winter. 



Amherst: "Common migrant." Berkshire: "Not common summer 

 resident." Bristol County : " Permanent resident, rather common in 

 summer; common on migration, few in winter." Brookline: " Uncom- 

 mon summer and winter resident." Common migrant. Cambridge : 

 Common transient visitor, rare summer resident, uncommon winter resi- 

 dent. Cohasset : "Common resident." Dedham: "Rather common." 

 Essex County : " Resident. Not abundant." Ipswich : "Rather com- 

 mon." Martha's Vineyard : "Uncommon migrant and probable summer 

 resident." Springfield: "Common spring and autumn visitor." Occa- 

 sionally breed; often seen in winter. Templeton: "Common summer 

 resident. Occasional in winter." Wellesley: "Rather common sum- 

 mer resident, .... rare winter resident." 



164. Accipiter cooperii (Bonap.). COOPER'S HAWK. 



A rather uncommon spring and autumn migrant, and uncom- 

 mon summer resident ; rare in winter. 



Amherst : " Common summer resident." Berkshire : " Rare summer 

 resident." Bristol County : "Permanent resident, common in summer, 

 few in winter." Brookline: "Common summer resident and migrant." 

 Cambridge : Common transient visitant, not uncommon summer resi- 

 dent, rare winter visitant. Cohasset: "Rather uncommon resident." 

 Dedham: "Common." Essex County :" Winter. Very rare." Ipswich: 

 "Uncommon." Martha's Vineyard: "Common summer resident." 



