STERNA MEDIA. 209 
The legs, feet, and bill of this species are black ; the lower 
mandible is slightly " Gull-billed " or angulated. 
Total length about 15 inches. 
298. Sterna cantiaca, Gm. The Sandwich Tern. 
" This Tern is seen near Tangier in abundant flocks from 
November to February." — Favier. 
The Sandwich Tern is very common in the Straits in 
autumn, winter, and spring. Sometimes thirty or forty may 
be noticed sitting together on the small isolated rocks near 
Cabrita Point, and will allow a boat to approach within 
a few yards. They pass north about the first week in April, 
when I killed an old male tinted on the breast and under wing- 
coverts with a beautiful pink blush, just as is sometimes found 
in the spring on old males of the Black-headed Gull [Larus 
ridibundus). This Tern was also numerous at the mouth of 
the river at Lara(;lie during April. 
This species has the bill black, tipped with yellowish white ; 
legs and feet black. 
Total length about 15 inches. 
.299. Sterna bergii, Licht. The Swift Tern. 
This large Tern was once obtained by Favier in the Straits, 
and is described in his MS. The specimen, which I pur- 
chased from his successor, was an adult bird in winter plumage, 
and is now in the possession of Lord Lilford. 
The bill is pale yellow ; legs and feet black. 
Length 17 to 18 inches. 
300. Sterna media, Horsf. The Allied Tern. 
" This species is one of the least common of the Terns near 
Tangier,and oidy occasionally met with. Further south, in the 
vicinity of Larache, it is more frequently seen ; and I found 
it there during September, October, and November, in com- 
pany with S. cantiaca, which species it resembles in habits.'^ 
This Tern occurs in the Straits in spring. I obtained two, 
both males, shot near Tarifa on the 20th of April, 1874, and 
have seen others from Tangier : most probably they breed 
somewhere on the coast. 
