-I 



436 



Breiver^s AdJiiioiis to the List of 



distinct species ; but lie seems afterwards to have regarded 

 their dissimilarity as the result of age. Bonaparte and 

 Nuttall have both supported the same position. It has, 

 however^ been satisfactorily proved, by the justly cele- 

 brated author of *' Birds of America/' that these birds 

 are distinct species. The red-shouldered hawk is not 

 only found in the State, but also breeds here, as a nest 

 containing four eggs, which were pronounced to be those 

 of this bird by Mr. Audubon, w^as found in Roxbury. I 

 have also In my possession, the skin of this bird, which 

 was shot last winter in the same town. Since the above 

 was read to the Society, I have been Informed by Mr. 

 Samuel Cabot, Jr., that he also met with a nest of this 

 bird in Brookline. 



Falco Cooperiiy (Bonap.) A beautifully mounted 

 specimen of this bird, in the private collection of Mr. S. 

 Cabot Jr., was shot by him near Fresh Pond, in Cam- 

 bridge. 



MusciCAPA Canadensis^ (Linn.) This bird was met 

 with by Mr. Audubon, from Pennsylvania to Newfound- 

 land. 



MusciCAPA Acadica, (Graelin). This is a very com- 

 mon bird; and breeds in this vicinity in abundance. 



MusciCAPA cceriilea, (Wilson) ? A^ this bird has 

 been found as far north as Canada, it is not improbable 

 that it is occasionally to be met with in this State. ■ 



Sylvia discolor, (VieilL) This bird was found in this 

 State by Mr. Nuttall. , 



Sylvia rarer, (Wilson), Found, says Mr. Audubon, 

 from Pennsylvania to Maine. 



Sylvia Philadelphia, (Wilson). This bird was 

 observed by Mr. Nuttall in the Botanical Gardens in 

 Cambridge. I also met with it last summer, in the west- 



