448 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



They have probably sought more suitable ground. No Cormorants 

 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 u flori- 

 danas." — E. E.] 



7665G*j 

 76655 t 



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 LAEIDiE : 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 visit us. It was alone. 



76657 



ad. Stockton +Oct. 15, 1878 



*215. Sterna forsteri, Nutt. — 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. 



"Stockton . 



Apr. 17, 1878 



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



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

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

 Stockton before September 7. 



It was 

 It left 



74288 



? ad. 



''Stockton. 



Apr. 25, 1878 



Family PODICIPID2E : The Grebes. 



217. -EJchmophorus occidentalis, (Lawr.). — Western Grebe. 



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

 son (1878). I have shot four of them, two in spring, two in fall. Those 



* "Iris green ; eyelids bordered with rounded spots of bluish white." 



t "Eyes sea-green; eyelids bordered with rounded 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." 



