470 NATATORES. STERNA. TERN. 
Pirate 90. Fig. 1. represents it of the natural size, in the 
summer plumage. 
eg Bill one inch and a half in length, from the forehead to 
escrip- 
tion the tip; red for two-thirds of its length, with the point 
Summer black. Forehead, crown, and long occipital feathers 
plumage. 
intense black; the rest of the face, cheeks, and throat, 
white. Breast having a slight tinge of pearl-grey ; the 
rest of the under plumage white, frequently with a 
very faint rosy tinge. Head, neck, mantle, and wings, 
pearl-grey. Lower part of the back and upper tail- 
coverts white. ‘Tail having the exterior webs of the 
feathers grey, increasing in depth of colour to the out- 
ermost one, in which it is greyish-black. Quills, with 
the outer web of the first feather black for the greater 
part of its length; the rest hoary grey; the white up- 
on their inner webs ending at about an inch and a half 
from the tips. Legs and feet bright tile-red; the tarsus 
seven-eighths of an inch long. 
Winter In winter the black upon the forehead and crown loses its 
plumage. intensity; in other respects there is no difference be- 
tween that and the summer plumage. 
ROSEATE TERN. 
Srerna Doucattn, Mont. 
PLATE LXXXIX. Fies. 1. & 2. 
Sterna Dougallii, Mont. Orn. Dict. Sup. with fig—Selby in Zool. Jour. 
2. 462.— Shaw’s Zool. 13. 152.—Flem. Brit. Anim. 1. 143. No. 234. 
Hirondelle-de-Mer Dougall, Temm.-Man. d’Orn. 2. 738. 
Roseate Tern, Mont. Orn. Dict. Sup.—Bewick’s Br. Birds, ed. 1826, pt. 192. 
—Shaw’s Zool. 13. 153.—Flem. Br. Anim. 1. 143. 234.—Rennie’s Mont. 
Orn. Dict. 432. 
Periodical ‘Turis species of Tern was first discovered by Dr Mac- 
visitant. poucaLL of Glasgow, on the Cumbray Islands in the Frith 
of Clyde, the breeding resort of great numbers of the com- 
a 
