YELLU'VY-TllllUATED WAKliLEU. 587 



DIMENSIOiNS. 



Length, from ^/iO to o.OO ; stretch, 8.2.5 to 9.25; wing, 5.75 to 3.00 ; tail, 1.80 to 2.18 ; hill, .40 to ,4o^ 

 tarsus, .71 to .'M. 



DESCRiniON OF NESTS AND EGGS. 

 NESf s, placed on horizontal brandies of evergreens, composed of fine dead twigs from the larch, and 

 long moss, lined with fibrous roots, moss and hair. Dimensions, diameter, e.\ternally, 6.00 ; intemalhj 

 5.00. Depth, exteriially, 2. .50; internally, 1.75. Egg.s, four to si.x in number, oval in form, pale bluish 

 green in color, spotted with brown over the entire surface, and tlie spots often become confluent and lorm a 

 ring on the larger end. Dimensions, .50 by .G-J to .5o by 70. 



HABITS. 



The Bay-breah'ted Warbler is not a common bird at any season in Eastern Massachu- 

 setts, but 1 found it aliundant in the tliick evergreen forests of Nortliern Xeu- Ilaiiqisliire 

 an the vicinity of Lake Umbagog in June, 1871. Here they live Jiigh up in the tree top.s 

 among other warblers, but their singular song, the first part of which resembles the low 

 lisping notes of the Black-poll, Init wliich terminates witli a wai-ble similar to that uttered 

 by the Redstart, betra>-s theuL It was here at that time that I took the first nest and eo-fs 

 known to science. It w\as jilaced on the horizontiil branch of a kemlock twenty feet from 

 the ground On June 8th it contained three fresli eggs. Other nests taken by Messrs. 

 Brewster and Dean corresponded esseiitiidly in method of building, situation etc. with the 

 first. 



I found the Bay-breas'ted common and migrating with other warblei-s at Watsontown 

 Pennsylvania ^September 3d, 1875, but did not find many during the following sprimr at 

 Williamsport. I got a few, however, about tlie middle of May when tlie Hight of the 

 northward ^oing warblers was i\i its heiglit. 



DENDROICA DOMINICA. 

 Yellow-ihroated Warbler 



Dcndroeca dominica Baird, Review of American Birds, 18G5. 205. 



Plate VIII. Adult Male and Female. 



DESCRIPTION. 



Sp. Ch. Form, quite stout. Size, rather large. Bill, long, ratljcr slender, with the upper mandible 



:slightly curved. Wings, somewhat long and pointed. Tail, very slightly rounded, terminal spots extending 



■over or at least three feathers. Feet, small. Sternum, rather stuutly built. Keel, low, nut exceeding in heifht 



'one-half the width of the sternum. Tongue, long, thin, horny and acuminate, with the end cleft and divided 



into rather coarse cilia whicli extend along the sides for one-third of the terminal length, but they are shorter 



on these parts than on the tip. 



Color. Adult. Above, uniform slaty blue with the top of the head black on the front part. The 

 feathers of the back part of the crown are also black, but this color is more or less obscured with slaty. 

 Dark spots occasionally ajipear on the back. Wings, dark brown, with the outer webs edged with slaty, and 

 the inner with white ; both rows of wing coverts are tipped with white, forming bars. Tail, dark brown, 

 •edged on the outer webs with slaty, all the feathers excepting the two middle are si)otted terminally on the 



