i82 THE AUDUBON WAKIU.ICR 



Willi, I', only ;i little k-ss Icivciy than its local kinsman, the Audubon 

 W'arbkr. hy as niiicli as it has four ])atchcs of gold instead of five, this 

 beautiful nii^'rant appears lo have been very largely lost to sight in the 

 throng of its more brilliant relatives. Rathbun, writing from Seattle, says 

 of it: "A regular and not uncommon spring migrant, associating with 

 /,). luiduboiii. Have no fall record." Howies from Tacoma says: "An 

 irregular fall migrant, very numerous .some years, the fall of 1905 for 

 example. Have never seen it in spring." Vakinia, Ajml 30, 1891 ; Chelan, 

 May 22, 1905; Tacoma, April 2~, 1907, ate some of my own records. 

 Fannin gives the species as "An abundant summer resident, chiefly west of 

 the Cascades," in British Columbia, and it should occur regularly within our 

 lj<irders during migration. 



The tchip note of the Myrtle W avbler is indistinguishable from that of 

 />. auiluboni, but a single glinijjse of the white throat is sufficient to establish 

 identity. Those seen have necessarily been at close quarters and ranging 

 low, in willow thickets, along the margins of ]K>nds, etc., but it is altogether 

 possible for a migrant troop to hold to the tree-tops in passing and so elude 

 observation from ■'I'ortv-nine" to the Columbia. 



No. 75. 



AIDUBON'S WARBLER. 



A. O. I'. No. 636. Dendroica atiJuhoni 1 Towns.") 



Synonym. — Wkstkkn Yki.Uiw-iu.mim;!) Warhlkr. 



Description. — .Idiilt male: Similar to /). coronato but throat rich gamboge 

 yellow; anriciilars bluish gray instead of black: a large white wing i)atch formed 

 by tips of middle and outer edges of greater coverts; tail willi white Idotclies on 

 inner webs nf four or live outer feathers: usually more extensively black on 

 breast. Adult female: Similar to adult male but duller (differences closely cor- 

 responding with those in D. eorouata) : the white of wing patch nearly obsolete; 

 the vellow of throat paler and often, e<;])ecially on chin, more or less displaced 

 bv white ( young females even of the second summer arc .sometimes absolutely 

 without vellow on throat but the more abundant white on rcctrices is distinctive 

 as compared with Ih coronatal. Seasonal eliaiiges follow very closely those of 

 n. eorouata but yellow of throat is usually retained in winter save in young 

 females and (occasionally) young males. Length of adult about .S-.SO f 139.7); 

 wing 3.00 ( 76 I ; tail 2.43 ( 57 ) : bill .41 ( 10.4 ) : tarsus .80 (20.3). 



Recognition Marks. — Warbler size; /iir spots of yellow; extensive white 

 blolibing of t.iij : yellow rnm]) distinctive in any plumage save as compared with 

 P. eorouata. from which it is further distinguished (usually^ l)y yellow or yel- 

 lowish of throat (If this character fails, the more extensive white on tail will 

 always hold). 



Nestinjt.— .VcW; a well built, bulky structure of Iir twigs, weed stems. 



