224 ORNITHOLOGY AND OOLOGY. 



building another nest in the same tree, but a few feet higher. 

 In it the female laid three eggs, after which this nest and 

 eggs were removed ; but soon after they built another nest 

 in another pine, near the first : this nest was perhaps twenty- 

 five feet from the ground ; in this, two eggs were laid, which 

 were allowed to be hatched. One of these nests, with four 

 eggs, is in my collection, and is already described above. 

 The eggs are a pale, creamy-white color, with a very faint 

 roseate tint, and one marked with coarse and fine spots of 

 brown of different shades, and obscure spots of lilac. These 

 markings are quite thick at the large end of the egg, in 

 fact, are almost confluent into a sort of girdle. Their 

 dimensions are .66 by .53 inch, .66 by .52 inch, .64 by .52 

 inch, and .62 by .51 inch. 



This bird prefers the foliage of high trees to the lower 

 shrubbery, and I have noticed that it is most usually found 

 in or near the different pines. Its song is heard through 

 the mating and breeding seasons, as the bird is actively 

 moving about the trees searching for its food. 



This song is something like the syllables, ta-te-te-it-ta-tee, 

 uttered in a plaintive tone ; the first syllable low, the second 

 higher, the third and fourth quickly together and high, and 

 the fifth and sixth a little slower and lower. Its song is 

 peculiar, and cannot be confounded with that of any other 

 Warbler in New England. 



By the 10th of September, none are to be found in Massa- 

 chusetts ; and, by the 12th of that month, they have all left 

 New England. 



DENDROICA CANADENSIS. Baird. 

 The Black-throated Blue Warbler. 



Motadlla Canadensis, Linnaeus. Syst. Nat., I. (1766) 336. Gm., I. (1788) 991. 

 Sylvia Canadensis, Wilson. Am. Orn., II. (1810) 115. Nutt. Man., I. (1832) 398. 

 Aud. Orn. Biog., II. (1834) 309. 



Sylvia pusilla, Wilson. Am. Orn , V. (1812) 100. 



DESCRIPTION. 



Above uniform continuous grayish-blue, including the outer edges of the quill 

 and tail feathers ; a narrow frontal line, the entire sides of head and neck, chin and 



