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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 .58 inch, .66 by .52 inch, .64 by .52 
inch, and .62 by .51 inch. A large number of nests, with 
eggs collected in Massachusetts, have, within a few years, 
passed through my hands: they were all of the above de- 
scription. 
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-~tt-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. 
DENDROICA CANADENSIS. — Baird. 
The Black-throated Blue Warbler. 
Motacilla Canadensis, Linneus. 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. (1884) 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 
