244 NORTH AMERICAN BIRDS. 



This species is most closely related to D. adelaidce, from Porto Eico ; but 

 in the latter the yellow beneath extends back to the crissum, covering even 

 the sides ; there are also no streaks on the sides or back ; the proportions, 

 too, are quite different, the wings and tail being scarcely three fourths as long, 

 while ilia bill and feet are nmch the same size, the tarsi even much shorter. 

 A specimen (No. 41,808 S ) from Belize, Honduras, differs so essentially from 

 the Fort Whipple specimens, that it is, beyond doubt, entitled to a distinc- 

 tive name. The differences between these two very well marked races can 

 best be expressed in a table, as follows : — 



(40,680, $, Fort Whipple, Arizona). Bill (from nostril), .30; tarsus, .60; wing, 

 2.60 ; tail, 2.20. Superciliary stripe extending .20 behind the eye, that portion 

 behind the eye white ; yellow of jugulum not spreading over breast (ending 

 1.35 from the bill). Streaks of crown coalesced into a broad stripe on each 

 side ; those of back broad, and those on upper tail-coverts almost obsolete. 

 Wing-bands, .20 wide. Lore dusky-grayish. Hah. Fort Whipple, near Pres- 

 cott, Arizona ; abundant, breeding (Coues) var. gracice. 



(41,808, J', Belize). Bill, .30; tarsus, .60 ; wing, 2.20 ; tail, 1.95. Superciliary 

 stripe scarcely passing the eye, wholly yellow ; yellow of jugulum spreading 

 over breast (ending 1.60 from the bill). Streaks of the crown scarcely coalesced 

 along its sides ; those on back not longer than those on crown, and those on 

 upper tail-coverts very conspicuous. Wing-bands, .10 wide. Lore deep black. 

 Hah. Belize, Honduras, resident? ....... var. decora. 



Habits. We are indebted to Dr. Elliott Coues for all that we at present 

 know in reference to this recently discovered species. He iirst met with it 

 July 2, 1864, in the Territory of Arizona. Dr. Coues first noticed this 

 Itird among the pine woods covering the summit of Whipple's Pass of the 

 Pocky Mountains. He saw no more in his journey into Central Arizona 

 initil he was again among tlie |)ines at Fort Whipple. There he again 

 found it, and it proved to be a very common bird. Dr. Coues anticipates 

 tliat this species will yet be found to occur in the forests of the San Fran- 

 cisco Mountains, and that its range will be ascertained to include all the 

 pine tracts of New Mexico and Arizona, from the valley of the Eio Grande 

 to that of tlie Great Colorado Eiver. He also has no doubt that it breeds 

 near and around Fort Whipple. 



Specimens found at Belize, first believed to be identical Avith those from 

 Arizona, are now referred to a race called decora. 



According to Dr. Coues's obser\ations, tlie Warbler arrives at Fort AVhip- 

 ple about the 20th of April, and remains in tliat neighborhood until the third 

 week in September. It is found almost exclusively in pine woods, is active, 

 industrious, and noisy, and possesses very marked flycatching habits, Hying 

 out from its perch to catch passing insects. It has been, so far, found almost 

 exclusively among the tallest trees. 



In regard to the song of this species. Dr. Coues states that it appears to 

 have several different notes. One of these is the ordinary tsip, given out at 

 all times by both old and young of all kinds of small insectivorous birds. 



