562 BIRDS—LARIDA. 
Habitat, Europe. In North America, observed from Massachusetts to Florida, thence 
to Central America. Various West Indian Islands. Breeds apparently throughout its 
range. No United States record of wintering. 
Not common spring and fall migrant. Named by Audubon as above 
cited, and by Mr. Winslow as occurring on Lake Hrie. Mr. Langdon 
notes a single example from the vicinity of Cincinnati. 
STHERNA ANTILLARUM (Less.) Coues. 
Least ‘Tern. 
Sterna minuta, AUDUBON, Orn. Biog., iv, 1838, 175; B. Am., vii, 1844, 119. 
Sterna frenata, WHEATON, Ohio Agric. Rep. for 1860, 371; Reprint, 1861, 13. 
Sterna superciliaris, WHEATON, Food of Birds, etc., Ohio Agric. Rep. for 1874, 575; Re- 
print, 1875, 15.— Lanepon,Cat. Birds cf Cin., 1877, 18. 
Sterna superciliaris, vax. antillarum, LANGDON, Revised List, Journ. Cin. Soc. Nat. Hist., 
i, 1879; Reprint, 21. 
Sterna superciliaris, VIEILLOT, Nouv. Dict. d’Hist., Nat., xxxii, 1819, 126. 
Sterna minuta, WILSON, Am. Orn., vii, 1813, 80. 
Sternula antillarum, Lesson, Descr. Mam. et Ois., 1847, 256. 
Sterna frenata, GAMBEL, Proc. Phila. Acad., iv, 1848, 128. 
Sterna superciliaris, var. antillarum, CouES, Birds N. W., 1874, 692. 
Bill yellow, usually tipped with black. Mantle pale pearly grayish-blue, unchanged 
on the rump and tail; @ white frontal crescent, separating the black from the bill, bounded 
below by a biack lorai stripe reaching the bill; shafts of two or more outer primaries 
black on the upper surface, white underneath ; feet orange. Young :—Cap too defective 
to show the creséent; bill dark, much of the under mandible pale; feet obscured. 
Very small, only &-9; wing, 6-64; tail, 2-345; bill, 1-145 tarsus, #. 
Habitat, Temperate North America, especially along the Atlantie coast of the United 
States, but also on the larger inland waters. Up the Pacific coast to California. South 
into the Antilles and Middle America generally. Apparently winters beyond the United 
States. 
Not common and apparently very irregular spring and fall migrant. 
Audubon states that it ‘is extremely abundant at times on the lakes. 
and on the Ohio,” which is not confirmed by recent observations. Mr. 
Winslow does not give it as @ bird of Northern Ohio, but Mr. Langdon 
notes several specimens taken in the vicinity of Cincinnati. I saw a 
pair on the canal below this city several years since. 
GENUS HYDROCHELIDON. Brehm. 
Webs deeply incised (feet little more than semipalmate). Tail merely emarginate, 
hardly or not half as long os the wing. ? 
HYDROCHELIDON LARIFORMIS (L.) Coues. 
Black Tern. 
Sterna nigra, AUDUBON, Orn. Biog., iii, 1835, 5385; B Am, viti, 1844, 16.—KiRTLAND,. 
Ohio Geolog. Surv., 1838, 166, 185. 
