448 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



They have probably sought more suitable grouud. Xo Cormorauts 

 have been seen from September 6 to the present date (December 3), but 

 formerly they were abundant at all seasons, particularly where sloughs 

 penetrated the oaks of the uplands. 



[Note. — I cannot distinguish these specimens, nor, indeed, other Ca- 

 lifornian ones, from Eastern examples referable to the so-called ^'■jiori- 

 danusJ'—R. E.l 



76656* j ? ad. 

 76C55t 9 ^il- 



Stockton ? , 

 do .. 



Apr. 6,1878 

 Mar. 22, 1878 



Head only. 



213. Graculus violaceus, (Gin.). — Violet-green Cormorant. 



I have seen G. violaceus at Marysville in the spring. 



Family LAlllDJE : The Gulls and Terns. 



214. Larus californicus, Lawr. — California Gull. 



Gulls rarely visit the vicinity of Stockton, and then only when there 

 is a gale from the coast. The specimen sent is different from the Gulls 

 which usually ^isit us. It was alone. 



76657 — ad. Stockton :0ct. 15,1878 



*215. Sterna forsteri, Nntt. — Forster^s Tern. 



Forster's Tern was first seen at Stockton April 17, 1878, two days 

 after which it became common. It left Stockton previous to Septem- 

 ber 7. 



74289 $ ad. I 'Stockton I Apr. 17, 1878 



*216. Hydrochelidon nigra, (Linn.). — The Black Tern. 



The Black Tern was first seen at Stockton April 24, 1878. It was 

 abundant from that date until June 8, and probably later. It left 

 Stockton before September 7. 



74288 I ? ad. 



*Stockton Apr. 25,1878 



Family PODICIPID^ : The Grebes. 



217. iEchmophorus occidentalis, (Lawr.). — Western Grebe. 



I have seen four of these Grebes at Stockton during the present sea- 

 son (1878). I Iiave shot four of them, two in s])ring, two in fall. Those 



* "Iris green ; eyelids bordered with rounded spots of bluisli white," 

 t "Eyes sea-green; eyelids T)ordered with ronnded spots of pale blue; interior of 

 mouth metallic cobalt-blue, extending far down the throat, where it assumes a black- 

 ish hue." 



X "Iris blue, or brown-blue; web of mouth and eyelids orange-red, like spot on 

 mandible ; legs and feet pale clay -fleshy." 



