294 LARID.E. 



but it occurs in the marshes of the Guadalquivir towards San 

 Lucar, breeding there in considerable numbers, and its eggs from 

 thence have been supposed to belong to Larus melanocephalus. 



Head and bill black; lower mandible slightly angnlated or "Gull-billed"; 

 tail bluish grey. Length 13-14 inches. 



330. Sterna caspia, Pallas. The Caspian Tern. 

 Spanish for all Terns. Golondrina de mar. 



This large Tern is stated by Favier to be " very rare near 

 Tangier," he having only obtained a single specimen (in February, 

 1844), which occurrence I can supplement by one which occurred 

 in the winter of 1869. 



Near Gibraltar I did not meet with any, though two were 

 obtained by Lord Lilford near the Isla Menor, below Seville, in 

 April, 1883. They are only accidental stragglers so far west, but 

 further east in Spain, near Mar Menor, they are reported by 

 Guirao to be common. 



The largest of the Terns. 



Head black ; tail white ; bill coral-red, dark at tip; legs black. Length 

 19-21 inches. 



331. Sterna maxima, Boddaert. The Royal Tern. 



This Sea-Tern was once obtained by Favier in the Straits and 

 is described in his MS. The specimen, which I purchased from 

 his successor, was an adult bird in winter plumage, and is now in 

 the possession of Lord Lilford. Two specimens shot near Tangier 

 in December, 1882, are in Mr. J. J. Dalgleish's collection, to 

 wbom I am obliged for this information. 



Crown black and slightly crested ; bill orange-red. Length 19 inches. 



332. Sterna cantiaca, J. F. Gmelin. The Sandwich Tern. 



Spanish. Charran (Malaga) (Arevalo). 



" This Tern is seen near Tangier in abundant flocks from 

 November to February." Favier. 



