300 



North American Birds Eggs. 



667. Black-throated Green Warbler. Dendroica virens. 



Range.— Eastern United States, breeding from southern New England, South 



Carolina in the Alleghanies, and Illinois north to Hudson Ba.y; winters south 



of the United States. 



These common eastern birds are similar to the last but the 

 entire upper parts are olive greenish. They are nearly always 

 found, and always nest, in pines, either groves or hillsides 

 covered with young pines. The nests are usually placed out 

 among the pine needles where they are very ditficult to locate, 

 and resemble nests of the Chipping Sparrow. I have found 

 them at heights ranging from six to forty or fifty feet from the 



ground. The three or four eggs, which they lay in June, are white, wreathed 



and speckled with brownish and lilac. Size .60 x .50. 



(White. 1 



668. Townsend Warbler. Dendroica townscndi. 



Range.— Western United States, from the Rockies to the Pacific and from 

 Alaska southward; winters in Mexico. 



This is the common western representative ot the last species, 

 and is similar but has black ear patches and the crown is black. 

 They nest in coniferous woods throughout their United States and 

 Canadian range, the nests being placed at any lieight from the 

 ground and being constructed like those of the Black-throated 

 Green. Their eggs are not distinguishable from those of the 

 latter. Size .HO x .50. 



[White. I 



669. Hermit Warbler. Dendroica occidentalia. 



Range.— Western United States and British Columbia chiefly on the higher 

 ranges. Winters south to Central America. 



This peculiar species has the entire head bright yellow and the throat black; 

 upperparts grayish, underparts white. They are found nesting in wild rugged 

 country, high up in pine trees, the nests being located among bunches of 

 needles so that they are very difficult to find. The nests are made of rootlets, 

 shreds of bark, pine needles, etc., lined with fine grasses or hair. The three or 

 four eggs are laid during June or the latter part of May; they are white or 

 creamy white, and sometimes with a faint greenish tinge, specked and wreathed 

 with brown and lilac gray. Size .68 x .52. 



670. Kirtland Warbler. Dendroica Icirtlandi. 



Range.— Eastern United States; apt to be found in any of the South Atlantic, 

 Middle or Central States, and in Ontario, Canada. Winters in the Bahamas 

 where by far the greater number of specimens have been found. 



This very rare Warbler is bluish gray above, streaked with black, and yellow 

 below with the throat and sides streaked. Until the summer of 1903, the local- 

 ity where they bred was a mystery. The capture of a specimen, in June, in Os- 

 codo Co., Michigan, led to the search for their nests by N. A. Wood, taxider- 

 mist for the Michigan Museum at Ann Arbor. He was successful in his quest 

 and found two nests with young and one egg. The nest in which the egg was 

 found contained two young birds also. It was in a depression in the ground at 

 the foot of a Jack pine tree and only a few feet from a cart road. The nest was 

 made of strips of bark and vegetable fibres, lined with grass and pine needles. 

 The egg is white, sprinkled with brown in a wreath about the large end. Size 

 .72 X .56. It is estimated that there were thirteen pairs of the birds in this 

 colony. 



