BIRDS OF MASSACHUSETTS. 297 



The Small-headed Flycatcher, Muscicapa minuta, is a 

 species first discovered by Audubon. Little is yet known con- 

 cerning it, though ornithologists have been acquainted with it 

 for a considerable time. Dr. Brewer informs me that it has 

 been found in Ipswich, and that he picked up one of them, 

 evidently just dead, on the step of his door in Brookline. 



The Blue grey Flycatcher, Muscicapa ccBrulea, which was 

 formerly thought to proceed no farther to the north than New 

 York, is, I am told by the same gentleman, found in Massachu- 

 setts and as far as the Canada line. Professor Emmons tells 

 me that in Berkshire, the preceding species is common, but 

 that he has never met with this. 



Traill's Flycatcher, Muscicapa Traillii, a bird discov- 

 ered by Audubon, and named by him in compliment to Dr. 

 Traill of Liverpool, is also found in our State. A specimen 

 was obtained by Mr. Samuel Cabot, Jr. in the neighborhood of 

 Boston. It has probably been seen and mistaken for the small 

 pewee, which it so much resembles, that some ornithologists 

 regard them as the same. The difference in the size and 

 markings is trifling ; but the tail, which in the former is even, 

 is slightly emarginate in this. Nuttall, however, describes the 

 tail of M. Acadica as decidedly emarginate, and not, as Audu- 

 bon says, even, and slightly rounded. 



The Green black-cap Flycatcher, Muscicapa Wilsonii, is 

 enumerated among the birds of Massachusetts, on the authority 

 of Audubon. It is very rare in this State, though common 

 enough in Maine. 



The Canada Flycatcher, Muscicapa Canadensis, which, 

 like the preceding, is often classed with the warblers, is not 

 now uncommon in this State, however it may have been in 

 former years. 



The Yellow breasted Ictebia, Icteria viridis, certainly 

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