PASSERES TYRANNIDAE C. VIRENS VAR. RICHARDSONI. 353 



company, forming, as it seemed to me, a very incongruous element in these 

 sociable gatherings. Their call notes at this time were given almost as 

 incessantly as during the summer. In this species, the feathers of the 

 occiput are much lengthened, these forming quite a conspicuous crest. 



Young birds have the throat, belly, and under tail coverts warmly 

 washed with light sulphury yellow ; the ends of greater and middle wing- 

 coverts tipped with ferruginous, making two distinct bars. 



Iris brown ; bill above black, below bright-yellow ; legs and feet black. 



GONTOPUS VIRENS (Linn.), var. RICHARDSONI, Swains. 

 Short-legged Pewee. 



Tyrannula richardsonii, SWAINS., Fii. Bor.-Am., ii, 1831, 146, pi. 46 lower fig. 



Contopus rickardsonii, XANTUS, Proc. Acad. Nat. Sci. Phila., 1859, 190 (Fort Tejou, 

 Gal.). BD., U. S. & Hex. Bound. Surv., ii, pt. ii, 1859, Birds, 9. COUES, 

 Proc. Acad. Nat. Sci. Phila., 1S66, 61 (Fort Whipple, Ariz.). COOPER, Am. 

 Nat., iii, 1869, 31 (Montana). HENRY, Proc. Acad. Nat. Sci. Phila., 1859, 

 106 (New Mexico). MEERIAM, U. S. Geol. Surv. Terr., 187-', 691. GOOPER, 

 Birds Gal., i, 1870, 325. STEV., U. S. Geol. Surv. Terr., 18', 0, 463. SNOW, 

 Birds Kau., 1872, 6. AIKEN, Proc. Bost. Soc. Nat. Hist., 1872, 206 (Colo- 

 rado). 



23 z 



