BIEDS — STERNINAE— STERNA WILSONII. 861 



STEKNA HAVELLII, Audubon. 



Hairell's Tern. 



Sterna havellii, AuD. Orn. Eiog. V, 1839, 122.— Ib. Birds Am. VII, 1844, 103 ; pi. cccxxxiv. 



Sp. Ch. — Mult in winter. Fore part of the head, crown, rump, and entire under surface white ; surrounding the eye and 

 extending for about one inch behind it is a line of plumbeous black ; back and wings light pearl blue ; primaries dusky gray, 

 except on the inner part of the inner web, where they are grayish white, having a portion of their margins grayish black ; edge 

 of the wing and under wing coverts white ; tail of the same color as the back, but of a lighter shade ; bill black, yellow at the 

 point for about one-fifth its length, and brownish yellow at the base of the lower mandible ; iris brown ; legs and feet orange 

 yellow. 



Length, ]3| inches ; wing, IO5 ; tail, 45 ; bill, 1| ; tarsus, 15-16. 



Hab. — Texas to South Carolina. 



Specimens in my cabinet. 



STERNA TRUDEAUII, Audubon. 



Tnideaii's Teru* 



Sterna trudeauii, AtD. Orn. Biog. V, 1839, 125 — Ib. Birds Am. VII, 1844, 105; pi. ccccxxxv. 



Sp. Ch. — .Wh/( in winter. Front, crown, sides of the head below the eye, and throat, white ; a line of dark plumbeous sur- 

 rounds the eye and extends behind it for about one inch; back, wings, and under plumage, light bluish griy ; rump while ; tail 

 same color as the back, but lighter ; first primary dusky gray on the outer web and on the inner next the shaft, the other prima- 

 ries hoary on these parts, remainder of the inner webs grayish white, margined on the inner edge with blackish gray, most so on 

 the inner quills ; bend of the wing and under wing coverts white ; bill yellow at the base for about one-third its length, then 

 black with the point for about one quarter the entire length of the bill yellow ; iris brown ; legs and feet orange yellow. 



Length, 15 inches ; wing, IO5 ; tail, 5J ; bill 1 9-16 ; tarsus, 1. 



Hab. — Coasts of New Jersey and Long Island. 



Described from a specimen belonging to J. P. Giraud, esq. 



I have never seen either this species or S. havellii in summer plumage ; they are both closely 

 allied to S. acujiavida. 



STEENA FULIGINOSA, Gmelin. 



Tlie Sooty Tern. 



Sterna fuUginosa, Gmel. Syst. Nat. I, 1788,605.— Wils. Am. Orn. VIII, 1814, 145 ; pi. Ixxii.— Bonap. Syn. 1828, 

 No. 290— NuTT. Man. II, 1834, 284. -Aud. Orn. Biog. Ill, 1835, 263: V, 1839, 641.— Ib. 

 Birds Am. VII, 1844, 90 ; pi. ccccxxxii. 



Sp. Ch — ..Jdult. Forehead white ; lores, upper part of the head, hind neck, back, and wings, deep black ; tail black, except 

 the outer and the basal half of the inner web of the outside feathers, which are white ; sides of the head, edges of the wings, 

 and entire under surface, white ; bill black ; iris chestnut ; legs and feet black. 



Length, I65 inches ; wing, llj ; tail, 7j ; bill, IJ ; tarsus, 15-16. 



Hab. — Texas to Florida. 



Specimens in my cabinet and in that of Smithsonian Institution. 



STERNA WILSONI, Bonaparte. 



WUson'g Tern, 



Sterna hirvndo, Wils. Am. Orn. VII, 1813, 70 ; pi- Ix.— Bonap. Syn. 1828, No. 286— Ndtt. Man. II, 1834, 271.— 



AcD. Orn. Biog. IV, 1838, 74.— Ib. Birds Am. VII, 1844, 97 ; pi. ccccxxxiii. 

 Sterna wilsoni, Bonap. Comp. List, 1838, 01. 



