Perching Birds Chiefly Dull Colored. 



472. Beardless Flycatcher {Ornithion imberbe). 

 L. 4.5; W. 2.10. Ads. Bill small, narrow, upper 

 mandible decidedly curved; above gray tinged with 

 olive, below grayish white with a yellow tinge. 



Range.— Central America; north in spring to Lower Rio Grande 1 

 Texas. 



472a. Rid g way Flycatcher (O. i. ridg-wavi). Sim- 

 ilar to No. 472, but larger, W. 2.2; grayer, little if any 

 sulphur tinge on underparts. (Ridgw.) Notes. Call, 

 a shriller repeated; song, from the tree-tops, jyoop, 

 yoop, yoopeedeedledee. (Stephens.) 



Range.— Southern border of Mexican tableland north in spring to 

 southern Arizona. 



/( 6\6. Bank Swallow {Riparia riparia). L. 5.2. Ads. 

 Below white, a broad grayish brown band across the 

 breast; above grayish brown. Yng. Similar, but 

 brown areas more or less tipped with rusty. 



Range.— Northern hemisphere: in America, breeds from northern 

 New Jersey, Kansas, and southern California, north to Labrador, and 

 Alaska; winters south to Brazil. 



\ 



617. 



Rough-winged Swallow {Stelgidopteryx serri- 

 )ennis). L. 5.5. Ads. Above grayish brc 



)arbs on outer vane ui 

 Plumage more or less 



„ - „ -- >#.»«■•«.. v~"*«-& -~- r -- 



pennis). L. 5.5. Ads. Above grayish brown; below 

 grayish white, whiter on belly; barbs on outer vane of 

 outer primary recurved. Yng. Plumage more or less 



tipped with rusty. 



Range.— United States; breeds from Mexico north to Massachusetts, 

 Manitoba, and British Columbia; winters in Central America. 



211 



