94 NORTH AMERICAN BIRDS. 



head; ami one, hndsoniciis, also without it, anil witli Innwii licad. The 

 species may he arranged as follows: — 



1. Head and neck, above and beneath, Wade ; their sides white. 



A. A liroad wliitc stripe above the eye, meeting across forehead. 



1. P. montanus. Edges of wiiig-covcrts, secondaries, and tail scarcely 

 paler than general tint above. Beneath ashy-whitish, medially. Wing, 

 2.85; tail, 2.50; bill (along cnhiien), .50 ; tarsus, .09; middle toe, .43 ; 

 wing-formula, 4 = 5, 3 -=6, 7, 2; graduation of tail, .18. JIab. Moun- 

 tain regions of Middle and Western United States. 



B< No white stripe above the e3'e. 



a. Tail as long as, or longer than, wing. Conspicuous white edgings to 

 wing-covert,«, secondaries, and tail-feathers. 



2. P. atricapillus. 



Dorsal region yellowish-cinereous, wings and tail purer ash; sides light 

 ochraceous. White edgings of tail-feathers not margining their ends. 

 Wing, 2.60; tail,»2.G0; bill, .40; tarsus, .02; middle toe, 30; wing- 

 formida, 4, 5, G, 3, 7, 8, 2 = 9; graduation of tail, .30. (12,8.')1 ^, 

 Brooklyn, N. Y.) Ilab. Eastern Province of North America, north of 

 about 39° var. atricajii I / us. 



Dorsal region and sides with scarcely a perceptible yellowish tinge; 

 white edgings of tail-feathers p.issing around their ends. Beneath 

 whitish. Wing, 2.75; tail, 2.80 ; eulmen, .35 ; tarsus, .65 ; middle too, 

 .40 ; wing-formula, 5, 4 = 0, 3 = 7, 8, 2 = 9; graduation of tail, 

 .50. (.3704^? Salt Lake City, Utah.) Ilab. Regionof Missouri River 

 and Rocky Mountains var. scptentr ionaUs. 



Colors as in atricapillus, but much darker. Beneath more ochraceous. 

 Wing, 2.40; tail, 2.50; eulmen, .40; tarsus, .60; middle toe, .40; wing- 

 formula, 4th, 5th, and Gth equal, 3 = 7, 2 = 10; graduation of tail, .2.5. 

 (67li2 $ ? Fort Vancouver, Washington Territory.) Hab. Pacific Prov- 

 ince of North America var. occideii Id I !.i. 



b. Tail .shorter than wing; no conspicuous white edgings to wings and tail. 



3. P. meridionaliB.' Beneath ashy (nearly dark as upper surface), 

 whitish medially. Wing, 2.00; tail, 2.20; eulmen, .40; tarsus, .03; 

 middle toe, .40; wing-formula, 4, 5, 6, 3 = 7, 2 = 10; graduation of 

 tail, .10. (10,20:i, Mexico.) Ilab. Eastern Mexico. 



4. P. carolinensia. Beneath pale soiled ochraceous-whitish, scarcely 

 lighter medially. Wing, 2..55 ; tail, 2.30 ; eulmen, .35 ; tarsus, .53 ; 

 middle toe, .38 ; wing-formula, 5, 4, 6, 7, 3, 8, 2 = 9 ; graduation 

 of tail, .10. (706 <y, Wiushington, D. C.) Eab. Eastern Province of 

 United States, south of about 40°. 



2. Head and neck, above and beneath, broivn, the throat darkest ; their sides white. 



C. Back, scapulars, rump, and sides rusty-chestnut. 



5. P. rufescens. Side of neck pure wliite. Wing, 2.35 ; tail, 2.00 ; 

 tarsus, .61 ; middle toe, .10. Tail scarcely graduated. Hah. Pacific 

 coast of North America. 



D. Back, etc., grayish or ochraceous brown. 



0. P. hudaouicus. Side of neck grayish. Back, etc., smoky-gr.ay. 



' I'lirasnicridioiudi'!, .Sci-atkii, I'. Z. S. 185C, 293. — li.MKi), K<'V. 81. 



