LARINiE. 
STERNA. 
319 
of the upper parts light greyish-blue_, excepting the rump, which is 
white ; the primary coverts and quills^ as well as the tail-feathers and 
their coverts, hoary, with the shafts white, but five of the quills dusky 
on the outer web, on the inner along the shaft, and on the inner mar- 
gin toward the end. Young, in winter, with the bill somewhat shorter, 
and more tinged with brown, the lower parts, rump, outer web of la- 
teral tail-feathers, and sides of neck, white ; wings as in the adult, but 
the primaries internally margined with white, and the secondaries tip- 
ped with the same ; upper part of the head, and the rest of the upper 
parts, light yellowish-brown, intermixed with gre^lsh-blue ; a band of 
black on the sides of the head, as in the adult. 
Adult, 151, wing, 
From Texas to South Carolina. Common. Migratory. 
Havell’s Tern, Sterna Havelli, Ann. Orn. Biog. v. v. p. 122. 
435. 7 . Sterna Trudeaui, Aud. Trudeau’s Tern. 
Plate CCCCIX. Fig. 2. Adult. 
Bill about the length of the head, rather slender ; wings a little 
longer than the tail, which is deeply forked. Bill black, with part of 
the base of the lower mandible, the edges of both, and their tips to 
the length of five-twelfths of an inch, yellow ; feet orange, claws 
brown, toward the end yellow ; a band of blackish-grey surrounding 
the eye, and extending toward the nape ; fore part of head, cheeks, 
and upper part of throat, white ; the rest of the upper and lower parts 
light greyish-blue, excepting the axillar feathers, lower wing-coverts, 
and rump, which are white ; tail-coverts and tail greyish- white ; pri- 
mary coverts and quills hoary, but the outer five dusky grey on the 
inner web, toward the margin, and less so along the shaft, and on the 
outer web ; the shafts of all the quills and tail-feathers white, as are 
the inner edges of the primaries and tips of the secondaries, the inner 
excepted. This species has the bill somewhat longer and more slender 
than that of Havell’s T ern, and differently coloured ; the tarsus longer, 
and the lower parts of the body of the same tint as the upper, whereas 
that species is white beneath. 
Adult, 16 ; wing, 10 y§. 
Great Egg Harbour and Long Island. Rare. Migratory. 
Trudeau’s Tern, Sterna Trudeaixi, Aud. Orn. Biog. v. v. p. 125. 
436. 8. Sterna arctica, Temm. Arctic Tern. 
Plate CCL. Male. 
Bill about the same length as the head, slender, and with the mouth 
and feet vermilion, tinged with carmine ; wings about two inches 
shorter than the tail, which is very deeply forked ; upper part of head 
