94 NORTH AMERICAN BIRDS. 



head ; and one, hudsoniciis, also without it, and with brown head. Tlie 

 species may be arranged as follows: — 



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



A« A broad white stripe above the eye, meeting across forehead. 



1. P. montanuB. Edges of wing-coverts, secon(hiriL's, and tail scarcely 

 paler than general tint above. Beneath asliy-whitisii, medially. Wing, 

 2.85 ; tail, 2.50 ; bill (along cnlmen), .50 ; tarsus, .G!) ; middle toe, .43 ; 

 wing-formula, 4 = 5, 3 = 0, 7, 2 ; graduation of tail, .18. Hah. Moun- 

 tain regions of Middle and Western United States. 



B< No wiiite stripe above the eye. 



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

 wing-coverts, secondaries, and tail-feathers. 



2. F. atiicapilluB. 



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

 ochraceous. Whii'' edgings of tail-feathers not margining their ends. 

 Wing, 2.60; tail, .1)0; bill, .40; tar,sus, .02; middle toe, 30; wing- 

 formula, 4, '■., G, 3, 7, 8, 2 = 9 ; graduation of tail, .30. (12,851 $, 

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

 about 39° var. atricapillus. 



Dorsal region and sides with scarcely a perceptible yellowish tinge; 

 white edgings of tail-feathers passing around their ends. .Beneath 

 whitish. Wing, 2.75 ; tail, 2.80 ; culmen, .35 ; tarsus, .05 ; middle toe, 

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

 .50. (3704^? Salt Lake City, Utah.) 7/«6. Region of Missouri River 

 and Rocky Mountains var. sepientr ion ulis. 



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

 Wing, 2.40; tail, 2.50; cuhnen, .40; tarsus, .00; middle toe, .40; wing- 

 formiila, 4th, 5tb, and Gth equal, 3 = 7, 2 = 10; graduation of tail, .25. 

 (G7G2 $ ? Fort Vancouver, Washington Territory.) Hah, Pacific Prov- 

 ince of North America var. Decide II tul is. 



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



3. P. meridionalis. ' Beneath ashy (nearly dark as upper stnfaee), 

 whitish medially. Wing, 2.G0; tail, 2.20; culmen, .40; tarsus, .03; 

 middle toe, .40 ; wing-formida, 4, 5, 0, 3 = 7, 2 = 10 ; graduation of 

 tail, .10. (10,203, Mexico.) Hab. Eastern Mexico. 



4. P. carolinensiB. Beneath pale soiled oehraeeous-whitish, scarcely 

 lighter medially. Wing, 2.55; tail, 2.30; cuhnen, .35; tarsus, .53; 

 middle toe, .38 ; wing-fonnnla, 5, 4, 0, 7, 3, 8, 2 = 9; graduation 

 of tail, .10. (700^, Wa.shington, D. C.) Hab. Eastern Province of 

 United States, south of about 40°. 



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



C3. Back, scapulars rump, and sides rnst^'-chcstnut. 



5. P. rufesoenB. Side of neck pure white. Wing, 2..'!5 ; tail, 2.00 ; 

 . tarsus, .01 ; middle toe, .40. Tail scarcely graduated. Hab. Pacific 



coast of North America. 

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



G. P. hudBOUiouB. Side of neck grayi.sh. Back, etc., smoky-gray. 



' I'.ints mwidunutlis, Sci,.irKR, 1'. Z, S. 1850, 293. — lUllui, Iti'v. 81. 



