BIRDS—cTERNINAE—STERNA BEGIA. 8£9 
Bill tong and rather strong, black; mantle deep black ; under plumage white; tail very 
deeply forked ; legs and feet black..............:00008 Serco nscatesBesacensaey cece’ S. fuliginosa. 
Bill slender, coral red, black near the end, tip yellow; mantle light grayish blue ; 
beneath pearl gray ; tail deeply forked; the outer web of the lateral feather blackish 
gray; legs and feet coral red.......... Nae eeahoca co scstnses ini P signe doettecse pibgonsaee S. wilsoni. 
Bill slender, deep carmine; mantle light grayish blue ; under plumage bluish gray ; tail 
very deeply forkeds; legs and feet crimS0M.-.......0.0..:.csseeedeeeeeesecses sevens S. macrura. 
Bill rather slender, orange yellow at base, black near the point, which is pale yellow ; 
mantle bluish gray; below white; tail deeply forked; the outer web of exterior 
feather white; legs and feet scarlet............. Men coete sis daetians/scetecdss oo toosyeeite S. forstert. 
Bill slender, brownish black, orange at base; mantle pale bluish gray ; under plumage 
white, with a roseate tinge; tail very deeply forked; legs and feet vermilion. 
S. paradisea. 
Bill slender, carmine; mantle bluish gray ; under surface white; tail deeply forked ; 
legs andi feet Oranges. .nceses <cxiesues ce. ve Ob one eae Renae ceee ce erorats asttion car eeeiicalus at S. piket. 
Bill small and slender, pale orange yellow; mantle bluish gray; below white; tail 
forked ; legs and feet pale orange red....... vod deaadats totegnos Seadisienslssbe lisse eaem oon) MENGLMs 
STERNA ARANEA, Wilson. 
The Marsh Tern, 
Sterna aranea, Wits. Am. Orn. VIII, 1814, 143; pl. Ixxii.—Bonap. Syn. 1828, No. 285. 
Sterna anglica, Nutr. Man. II, 1834, 269.—Avp. Orn. Biog. V, 1839, 127.—Is. Birds Am. VII, 1844, 81; 
pl. cccexxx. 
Sp. Cu.—Adult. Upper part of the head, occiput and sides of the head upon a line with the lower eyelid, black ; beck and 
wings light bluish gray ; primaries hoary on the outer webs and ashy gray on the inner, becoming lighter towards the base ; tail 
same color as the back, but paler and with the outer feather nearly white ; a line at the base of the upper mandible, neck in 
front and entire under plumage, pure white ; bill deep black ; iris brown ; legs and feet black. 
Length, 132 inches ; wings in extent, 34, from flexure 103; tail, 4; bill, 13; tarsus, 1. 
Hab.—Coast of the United States as far north as Connecticut. 
Specimen in my cabinet. 
STERNA CASPIA, Pallas. 
The Caspian Tern, 
Sterna caspia, Paty. Nov. Com. Petr. XIV, 582.—Lawr. Ann. Lyc. N. Y. V, 1851, 37. 
Sr. Cu.— Adult. Forehead, crown, sides of the head, and occiput black, glossed with green; this color extends below the 
eye, under which is a narrow white line ; back and wings light bluish ash ; the six outer primaries dark slate grey on their inner 
webs ; quill shafts strong and white ; tail and its upper coverts grayish white ; neck and entire under plumage pure white ; bill 
and inside of mouth bright vermilion ; legs and feet. black. Bill very stout. ‘Tail not deeply forked. 
In the young the back, wing coverts, and tail are mottled and barred with blackish brown. 
Length, 21} inches ; extent of wings, 51; from flexture, 16? ; bill from base, 23; depth at base, 3; tarsus, 1? ; middle toe 
and claw, 13 ; tail, 6. 
Hab.—Coast of New Jersey northward. 
Specimens of adult and young are in my cabinet, obtained on the south shore of Long Island. 
STERNA REGIA, Gambel. 
The Royal Tern. 
Sterna cayana, Bonar. Syn. 1828, No. 284—Nurr. Man. If, 1834, 268.—Aup. Orn. Biog. UI, 1835, 505: V, 
639.—Is. Birds Am. VII, 1844, 76; pl. eccexxix. 
Sterna regia, Gams. Proc. Ac. Nat. Sc. Phil. IV, 1848, 128. 
Thallasseus regius, Game. Jour. Ac. Nat. Sc. Phil. I, 1849, 228. 
