636 OKNITIIOLOGV. 



On these tree-tops many of their nests were found, these being composed 

 of sticks, and containing one to three eggs each. 



Besides the specimen in our collection, an adult, in the nuptial plu- 

 mage, was killed in May, but was not preserved ; in this specimen the fol- 

 lowing ditferences were noted in the colors of the; soft parts: Iris, brilliant 

 green ; eyelids, and whole interior of the mouth, bright cobalt-blue ; gular 

 sac, deep orange. 



Lkt of specimens. 



121,9 juv.; Pyramid Lake, Aii}j;ust i;5, 1807. 3.?A— .W.i. Hill, dull hrowiiisli- 

 jellow, nearly bhuk on the culnien ; gular sac, dull cbroiueyellow ; iris, greenisli- 

 gray ; tarsi and toes, deep black. 



TT), egg (I); Pyramid Lake, May 17, 1868. Nest in top of cotton-wood tree, at 

 uioutli of tbe river. 



751, egg (1); Pyramid Lake, May 2(/, ISGS. Sauic remarks. 



Family LARIDiE — Gulls and Tekns. 



BlASIPUS nEERMANNL 

 Ileeriiiiiiiii's Uiill. 



Larm hcermanni, Cassin, Pr. Ac. Nat. Sei. Pliilad., VI, 1852, 187. 



Blasipiis heermanni, BoNAP., Consp. Av., II, 1850, 211. — Lawrenck, in Baird's 



Birds N. Am., 1858, »48.— Baied, Cat. N. Am. Birds, 1859, No. 660. 

 Larns (Blaxipus) hcermanni, ScL. & SaLV., Proc. Zool. Soc. Lond., 1875, 571 



(lig.).— CoUKS, Birds N.W., 1874, G41. 

 Larus belchcri, ScilLEG., Mus. PaysBas, //(ir/, !) (part). — CouES, Check List, 



1873, No. 531. 

 Larus (BUisipux) belchcri, CoUES, Key, 1872, 314. 



Found only along the Pacific coast. Represented in our collection by 

 a specimen presented by Mv. Parker. 



List of specimens. 



429, " ^ juv.; Bay of San Francisco, February 20, 1868. Hj— 42— (?)— 10." (Pre- 

 sented by H. G. Parker.) 



