576 NOTES ON SOME OF THE 



of the nest of the Maryland Yellow-throat. It is a little 

 smaller at the top, where the internal diameter is less than 

 two inches, while in the middle it is two and a quarter. The 

 eggs were live in number, including a Cow Bunting's egg 

 that these watchful parasites had introduced. The Warbler's 

 eggs are thus described by Mr. Maynard : 



"No. 1 is regular in form, thickly spotted and blotched with dark 

 brown at -the larger end and sparsely at the smaller, on a white ground. 

 Length, sixty-six one-hundreclths of an inch ; diameter, fifty-five one- 

 hundredths. No. 2 is like No. 1, only it is less thickly spotted. Length, 

 sixty-six one huudredths ; diameter, fifty-three. No. 3 is least spotted 

 of the four, it being but sparsely so on the larger end and not at all on 

 the smaller. Dimensions same as those of No. 1. No. 4 is more elon- 

 gated, and much the most spotted, the spots forming a broad baud around 

 the larger end, and are scattered over the remaining surface." 



Mr. Maynard adds : "It is a curious fact that although I 

 have seen and collected quite a number of males of this 

 species, this is the first female that I have seen, although I 

 have made diligent search for them." 



SWAINSON'S WARBLER. Helmitliems Swainsonii Bon. 

 Although this species is recorded by both Audubon and Pea- 

 body as having been taken in Massachusetts, and on these 

 authorities given in my Catalogue, there is some reason to 

 doubt its having been captured here. Both notices doubt- 

 less refer to the same specimen, as well as to the same 

 authority, Dr. Brewer. But this gentleman informs me 

 that the record is erroneous and the result of a misunder- 

 standing ; the specimen referred to he says was not this 

 species at all. Dr. Brewer knows of no instance of its occur- 

 rence here, and it should doubtless be stricken from the list 

 of Massachusetts birds. Dr. Cones says he has never seen 

 it so far north as Washington, D. C. * 



WORM-EATING WARBLER. Helmitherus vermivorus Bon. 

 Mr. Peabody states, in his "Report on the Birds of Massa- 

 chusetts," that the nest of this species had been found in 

 Cambridge, which statement I repeated in my Catalogue. 



*List of Birds of New England. Proc. Essex Inst, Vol, v, p. 270. 



