NATURAL SCIENCES OF PHILADELPHIA. 103 



Only three outer primaries with inner webs emarginated : third 

 or fourth (usually the third) quill longest; first shorter than the 



% , juv. (Two specimens, W. Nevada, coll. U. S. Geol. Expl. 40 Par.): 

 18M9f ; 43|-4oi ; 12i-13f ; 9|-10f ; f| ; 1 ; 6^-7 ; 3Hf. Bill dull black, 

 becoming pale blue towards rictus, and on basal half of lower mandible ; 

 cere and rictus yellowish-green : iris cinereous, with brownish outer wash ; 

 tarsi and toes pale ashy-green ; claws dull slate-black. Weight If 1^ lbs. 



9 , juv. (Three specimens, W. Nevada and Utah, coll. U. S Geol. Expl. 

 40 Par.): 16J-21 ; 45-503; 13-14; 10^-11; jf-1 ; lf-1* ; 6f-7 ; 3-33; 

 weight 2 lbs. Iris as above, or yellowish-brown ; feet as above (youngest 

 specimens) or light chrome-yellow (older). 



b. Notes on individuals. 109, 9 i J uv - Big Bend of the Truckee (Camp 

 12), Nevada, July 26, 18G7. 16^45 13 10 1 If 6| 3. Bill dull 

 black, inclining to pale blue on the rictus and on the basal half of the lower 

 mandible ; cere pale yellowish-green ; iris cinereous, with a brownish outer 

 wash ; tarsi and toes very pale ashy-green. 



113, 9, ad. (Fuliginous plumage, parent of Nos. 109, 115, 116, and 117). 

 Camp 12, July 29, 1867. 21^ 53 17 14 12 8| 5. Weight 2| pounds. 

 Bill slate-black, light blue basally ; cere and rictus pure light yellow; iris 

 deep hazel ; tarsi and toes light chrome-yellow ; claws black. 



114, %, ad. (Normal plumage, mate of the preceding). Camp 12, July 

 29, 1867. 19| 48 16 12| i| 1| 7f 4i. Weight 1| pounds. Cere 

 and rictus light, dull lemon-yellow ; tarsi and toes deep chrome-yellow ; iris 

 deep hazel. 



115, 9, juv. Camp 12, July 29, 1867. 193-471411}^ 137^33. 

 Weight 2 pounds. Same remarks as to No. 109. 



116, % , juv. Camp 12, July 29, 1867. 19 45^ 13| 10f 1| If- 7 

 S|. Weight If pounds. Same remarks. 



177, % , juv. Camp 12, July 29, 1867. 18| 43| 12 9| fj 1 6| 

 4. Weight 1^ pound. Same remarks. 



771, 9, ad. (Intermediate plumage, barred ochraceous belly). Truckee 

 Reservation, May 29, 1868. (Shot from nest.) 21^5216^13^. Weight 

 3 pounds. Bill deep black, the upper mandible scarcely paler basally ; 

 lower, with the basal third pale blue ; cere and rictus greenish-gamboge ; 

 iris burnt sienna ; tarsi and toes deep gamboge, with a greenish tinge. 



1072, 9, ad. (Normal plumage, immaculate white belly). Salt Lake 

 City, Utah, May 31, 1869. 2153. Weight 2 pounds. Bill slate-black, 

 becoming light slate-blue basally ; cere and rictus greenish-gamboge ; naked 

 eyebrow olive-yellow ; iris deep fine hazel ; tarsi and toes deep chrome- 

 yellow. (Stomach filled with grasshoppers.) 



1073, 9 , ad. (Normal plumage, immaculate white belly). Same locality 

 and date. 21^53. Weight 2^ pounds. Same remarks. 



1074, 9, ad. (Normal plumage, immaculate white belly). Same locality 

 and date. 22 53. Weight 2^ pounds. Same remarks. 



