G38 ORNixnoLOCxY. 



List of specimens. 



Ill, i ad.; Truckce River, at Big Bend, July 29, ISGT. 21§— o3— loj— 12— 2J— 

 21 — OJ— 2J. Bill, grceuisb leinoii-jellow, the terniinal third of the lower maiulible 

 bright orange-red, tinged with carmine, the tip again yellow; a distinct dusky spot in 

 the middle of the red, and one immediately above it, near end of upper mandible ; 

 rictus and eyelids, vermilion-red; iris, dark hazel; tarsi and toes, light ashy pea green ; 

 claws, black. 



(J80-734, eggs; island in Pyramid Lake, May IG, 18G8. 



739-747, eggs; same locality, May 18, 18GS. 



752, ^ ad.; island in Pyramid Lake, May 20, 1SG8. 22— 54-13^. Bill, deep na- 

 ])les-yellow, tinged with chrome, and having a distinct band of dusky near the end, 

 which is grayish-white; the dusky spot on the lower mandible followed posteriorly by 

 a spot of deep orange-red; rictus and eyelids, vermilion ; iris, vandyle brown; tarsi 

 and toes, pale pea-green. [Compare with notes on L. delawarensis, as given below.] 



753-7G0, eggs; same locality, May 22, 18GS. 



800, S ad.; same locality. May 25, 18G8. 22^ — 55i— (?)— 13J. Same remarks as 

 to No. Ill, but black spots of the bill obsolete. 



801, ^ ad.; same locality and date. 22J — 55J — (?)— 13i. Same remarks; black 

 spots distinct. 



802, 9 ad.; same locality and date. 21 J — SIJ— (?)— 123. Black spots obsolete. 

 1199-1217, eggs; Carrington Island, Great Salt Lake, June 17, 18G9. (Collected 

 by R. N. Davis and S. Watson.) 



Larus DELAWAEENSIS. 



Riii(;-bille(I Gull. 



(Que-nahk'-et of tlie Paiutes.) 



Larus delawarensis, Okd, Guthrie's Geog., 2d Am. ed., II, 1815, 319. — Lawr., in 

 Baird's Birds N. Am., 1858, 84G.— Baird, Cat. N. Am. Birds, 1859, No. GG4.— 

 COUES, Key, 1872, 313; Check List, 1873, No. 548; Birds N.W., 1874, 63G.— 

 Henshaw, 1875, 485. 



This Gull was observed only as a winter sojourner at Pyramid Lake, 

 being entirely absent from there in simamer. 



List of specimens. 



3G5, 9 ad.; Pyramid Lake, Nevada, December 21, 18G7. 18—45—144—12.^—15 

 — IJ — 53 — 2J. Bill, gieenish naples-yellow, with a transverse band of deep black 

 near the end ; rictus and eyelids, vcrmilionred ; interior of the mouth, deep orange- 

 red, growing more intense posteriorly; iris, light naples-yellow ; tarsi and feet, deep, 

 light, naplcs yellow. [Compare with notes on L. californicus, given above.] 



