476 NORTH AMERICAX BIRDS. 



bushes, in thickets. Eggs .CS X -48. Hah. Great 

 Plains, and prairie districts of Mississippi Valley, 

 north to Wj-oming, Dakota, and Minnesota, east 

 across Illinois; south, in winter, to southern Mexico. 

 G33. V. bellii Aud. Bell's Vireo. 

 (P. Median lower parts same color as sides and flunks, only (usually) 

 paler, 

 e'. Lores and orbital riui; yellow. 



/'. Larger (wing 2.40, or more). (Length about 5.00, wing 



2.40-2.60, exposed culmen .45-.52.) 



(/'. Beneath dull whitish, tinged with olive-yellowish; 



above grayish olive, varying to dull olive-gray, 



Hab. Bahamas (Xew Providence, Abaco, Green 



Cay, Cat Island, and Eleuthera Island). 



V. crassirostris (Uhyaxt). Large-billed Vireo.' 



ff. Beneath deep sulphur-yellow or '• King's j'ellow ;" 



above olive-green. Hub. Bahamas (Concepeion 



Island, Cat Island, Green Cay, Iiiini Caj-, and 



Galdiug Key, Andros Island). 



V. crassirostris flavescens Riuuw. Yellow Vireo.' 

 /'. Smaller (wing not more than 2.25). 



In coloration intermediate between F. crnmrostris 

 and V. crassirostris flavescens; wing 2.10-2.25, 

 tail 1.85-2.00, exposed culmen .40-.45. Hab. 

 Sotitbcrn Mexico, Honduras, and Guatemala; 

 north to Yucatan and JIazatlun. 



V. ochraceus .'^ai.v. Ochraceous Vireo.' 



(?. Lores and orbital ring dull whitish, the latter interrupted 



on upper e^'elid. (Above plain olive or olive-grayish, 



becoming more decidedly olivaceous on rump, upper 



tail-eoverts, and edges of secondaries and tail-l'eathevs ; 



middle and greater wing-coverts broadlj' tipped with 



•white, producing two very conspicuous bands across 



wing; lower parts dull olive-whitish, the sides and 



flanks more decidedlj', but never conspicuously, tinged 



with olive.) 



/'. Darker colored, w'ith shorter wing and tail and, usually, 



stouter bill ; above decidedly olive, becoming more 



' Lanivireo crattiroHrit Bbtant, Proc. Boat. Soc. N. II. vii. 1859, 112. Tireo crataironrit BAinn, Review 

 Am. B. i. 1866, 368. 



' New subspecies. Although occurring together with true V. crnmiirdnirit on scvcr.al isL-indii, this form 

 occurs exclusively on Rum Cay and Concepeion Islan^l, while only the true V. crnfimntnt is founil on Abaco 

 and New Providence. The separation is b.ised upon a very e.\tensive collection (about 76 specimens), em- 

 bracing large series from several of the islands above named. 



» Virco ochraccm Salv , P. Z. S. 1S63, 183. 



