358 THE RED-EYED VIREO. 



No. 138. 

 RED-EYED VIREO. 



A. ( ). U. No. 624. Vireosylva olivacea (Linn.). 



Description. — Adult: Crown grayish slate, bordered on either side by 

 blackisli : a white hne above the eye, and a dusky hne thru the eye; remaining 

 upperparts hght grayish oHve-green : wings and tail dusky with narrow olive-green 

 edgings; below dull white, with a slight greenish-yellow tinge on lining of wings, 

 sides, flanks, and crissuni ; first and fourth, and scci:>nd and third primaries about 

 equal, the latter pair forming the tip of wing; bill blackish at base above, thence 

 dusky or horn-color; pale below; feet leaden blue; iris red. Little difference 

 with age, sex, or season, save that young and fall birds are brighter colored. 

 Length 5.50-6.50 ( 139.7-165.1) ; wing 3.15 (80) ; tail 2.10 (53.5) ; bill .49 (12.5) ; 

 tarsus .70 (18). 



Recognition Marks. — Warbler size ; largest ; white superciliary line con- 

 trasting with blackish and slate of crown; red eye. Note smoother, and utterance 

 a little more rai)id than in L. s. cassinii. 



Nesting. — iVi\s7, a semi-pensile basket or pouch, of bark-strips, "hemp," and 

 vegetable fibers, lined with jilant-down, and fastened bv the edges to forking 

 twigs near end of horizontal branch, five to twenty feet up. Eggs, 3 or 4, white, 

 with black or umber specks and spots, few in number, and chiefly near larger 

 end. Av. size, .85 x .56 ( 21.6 x 14.2). Season: c. June i ; one brood. 



General Range. — Eastern North America, west to Colorado, LJtah, Washing- 

 ton and r.ritish Columbia; north to the Arctic regions; south in winter from 

 Florida to the ei|uator. I '.reeds ncarl\- thruout its North -\mcrican range. 



Range in Washington. — Imperfectly made nut. Summer resident on both 

 sides of the Cascades. Either increasingly abumlant or more observed latterly 

 (Brook Lake. Chelan, Stehekin, Seattle, Tacoma, Kirkland breeding 1908). 



.'Higrations. — Sf^ring: Seattle, May 3. igo8. 



Authorities. — Belding, Land Birds of the Pacific District, 1890, p. 199. 

 (Walla Walla by j. W. Williams. 1885). Ss-\ B. 



Specimens. — C. 



WE are rubbing our eyes a little bit and wondering whether the Red-eyed 

 Vireo has really been here all the time, or whether he only slipped in while we 

 were napping a decade m- two since. Certain it is that the bird's presence in 

 the Pacific Northwest was unknown to the pioneers, Townsend, Cooper, 

 Suckley, and the rest ; and the first intimation we had of the occurrence of 

 this Vireo west of the Rockies was Chapman's record, published in 1890^ of 

 specimens taken at Ducks and Ashcroft, B. C. The year following, viz., 

 August 4, 1 89 1, a singing Red-eye was recognized by Mr. C. F. Batchelder, 



Bull. Am. Mus. Nat. Hist., N. Y., Vol. III., p. 149. 



