KITTIWAKE GULL. 549 
adult bird, probably accustomed to such surroundings, visits the still 
waters in the limits of this city, cruising about for floating fragments, or 
resting buoyantly upon the water, apparently somewhat flattered to find 
himself an object of interest. 
The Herring Gull, like most of the members of this family, breeds in 
communities. The nest is placed on the ground, and is said to be large 
and bulky, composed of grass and moss. The eggs are generally three, 
measuring about 2.80 by 1.90; the ground color is a varying shade of 
bluish, greenish or brownish-olive, with dark markings, very variable 
in shape, size and distribution. 
LARUS DELAWARENSIS Ord. 
Rine-billed Gull. 
Larus zonorhynchus, AUDUBON, Orn. Biog., iii, ae 98; B. Am., vii, 1844, 152.— KIRTLAND, 
Ohio Geolog. Surv., 1838, 166, 185. 
Larus delawarensis, WHEATON, Ohio Agric. Rep. for 1860, 371, 379; Reprint, 1861, 13; 
Food of Birds, etc., Ohio Agric. Rep. for 1874, 575; Reprint, 1875, AM es 
Cat. Birds of Oin., 1877, 18; Revised List, Journ. Cin. Soc. Nat. Hist., i, 1879, 186; 
Reprint, <0. 
Larus delawarensis, ORD, Guthrie’s Geog., ii, 1815, 319. 
Larus zonorhynchus, RICHARDSON, Fn. Bor-Am., ii, 1831, 421. 
Adult plumage precisely like that of the last species, and its changes substantially the 
same ; bill greenish-yellow, encircled with a black band near the end, usualiy complete, 
sometimes defective, the tip and most of the cutting edges of the bill yellow; in high 
condition, the angle of the mouth and a small spot beside the black, red ; feet olivaceous, 
obscured with dusky or biuish, and partly yellow; the webs bright chrome. Notably 
smaller than argentatus ; length usually 18-20 inches; extent, about 48; wing, about 15; 
bill under 2, and only about 4 deep at the protuberance ; tarsus, about 2, obviously lon- 
ger than the middle toe. 
Habitat, North America generally ; throughout the interior as well as coastwise. 
Cuba. 
Common spring and fall migrant, perhaps formerly summer resident 
on Lake Hrie ; less common in the interior of the State than the preced- 
ing species. In this vicinity I have seen but two individuals of this 
species in spring and in fall. Mr. Langdon notes a single specimen 
taken in the vicinity of Cincinnati. My friend, C. J. Orton obtained 
specimens from a considerable flock, in aA pril, 1874, at the Licking Reser- 
voir. 
Sub-genus Rissa. Like sub-genus Larus, but bind toe rudimentary or minute, usually 
without a perfect claw. 
LaRus tRIDAcTYLUS Linneus. 
Kittiwake Gull. 
Rissa tridactylus, WHEATON, Ohio Agric. Rep. for 1860, 371, 379; Reprint, 1861, 13, 21.— 
Ripeway, Ann. Lyc, N. Y., x., 1874, 393. 
