Bl RDS — LANIIDAK — VIREO ATRICAPILLUS. 



337 



VIREO \WAAA, Aiul. 



Uoll'.s Viruo. 

 I'irfo billi, AcD. Birds Aincr. (8vo.) VII, 1844, 333 ; pi. 485, (Missouri.)— Cassis, Pr. A. N. Sc. V, Feb. 1851, 150. 



Sp. Cii.- Similar to V. ^ilrut, but «miillor. Olive greon above, tin^d with ashy on llic lop and sides of lieiid. A aliort lino 

 from tlic bill over tlicryt, and rrpion around lower i-yolid while ; lores dusky. Bcnoalli yellowieli white ; on ihe sides of Imdy and 

 posteriirly, sulphur yellow. Two faint bars of whilisli across Iho wing covcrls ; inner lertiaries edged broadly v.ith whiiisli. 

 Third quill longest ; the rest successively shorter, except the second, which is a little shoiter lliuii the spvcnlh. Spurious 

 primary about two-fiflhs the second, and more than one-third of the third. Length about 4.25 inches; wing, 2.25. 



Hub. — .Missouri river and eastern Texas. 



In this diniimitive species the bill is shaped much as in F. gilvus. The spurious primary is 

 large, its exposed portion about two-filths that of the second primary. The third primary is 

 longest ; then the foiirtli, fiftli, and sixth ; the second is a little longer than the seventh, and 

 about .24 of an inch shorter than the third. The tail is slightly emarginate and rounded ; the 

 feathers are quite narrow. 



The sulphur yellow is strongest about the tibia and on the under tail coverts. The whitish 

 bands are along the edges of the greater and middle coverts. The outer web of the first tail 

 feather is, however, not lighter than the rest. 



Specimens vary somewhat, the more southern ones being rather smaller. Sometimes there is 

 a faint tinge of brown on the b.east, and of lilac in the white of the belly. There is a tinge 

 of yellow on almost all the under parts. The third quill is sometimes a little shorter than the 

 fourth. This species is a miniature of V. gilvus, but may be readily di.stinguished by its smaller 

 size, by the much larger spurious primary, the exposed portion of which is two-fifths of that of 

 the second quill, instead of one-iourth. The sides of the belly and under tail coverts are 

 bright, though pale, sulphur yellow, instead of faint sulpliury white. The white bands on the 

 wing and that on the tertiaries are absolutely wanting in F. gilvus. The external edging to the 

 quills aad tail feathers is of a brighter olive green. 



List of specimens. 



VIREO ATRICAPILLUS, Woodh. 



Black-headed Flycatcher. 



Kirto alricapiKiM, Woodhouse, Pr. A. N. Sc. VI, Ap. 1852, 60, San Pedro, Tex. — Ib. Silgreave's Report on Zuili, 

 1833, 75 ; pi. i, Birds.— Cassin, III. I, No. 5, 1854, 153 ; pi. xxiv. 



Sp. Ch. — Fourth and fifth quills longest ; second little longer than secondaries. Head and neck above and on the sides black. 

 Back olive green, lighter towards the tail. Beneath while, the sides of body greenish yellow. A white ring round the eye 

 interrupted by the black of the head above, and extending in a broad lino to the base of the upper mandible. Two bands of 

 greenish white across the wing coverts. Bill black. Length, 4.75 ; wing, 2.12. 



Hah. — Devil's river, Texas. 



-tsb 



