BIRDS—LARIDAE—LARUS CIIALCOPTERUS, 
843 
Journal fur Ornith. Juli, 1855, p. 281, applies so well to the adult specimens before me, that I 
have no doubt of their being the same. His account, in which no measurements are given, is 
very concise and is as follows : 
“ Resembling L. glaucus altogether, with the exception of the wing feathers, which in this 
species are ashy gray with round white spots on the points.” 
He puts L. glaucopterus , Ivittlitz, as a synonym, but gives no references where to find the 
descriptions of either author. 
The omission to make references to the original descriptions of species prevails throughout 
Dr. Bruch’s very valuable monograph ; it would have added much to its usefulness if this had 
been done when citing authorities. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When 
collected. 
Whence ob¬ 
tained. 
Orig 
No. 
Collected by— 
Length. 
Stretch 
ofwings. 
Wing. 
Remarks. 
6462 
o 
Feb. 4,1856 
215 
Dr. Suckley.. 
25.00 
54.00 
17.25 
559 
26.00 
17.50 
4527 
o 
154 
23.00 
15.75 
Q 
Dec. 26,1856 
7 
24.00 
52.00 
15.50 
6457 
o 
Dec. 20, 1850 
6 
26.00 
58.00 
17.00 
6453 
Slioalwater Bay, W. T.. 
Oct. 13, 1854 
.do. 
Dr. Cooper .. 
24.50 
51.50 
15.50 
Iris grayish yellow; bill blue; 
feet flesh color. 
May 3,1852 
67 
red. 
6461 
Mar. —, 1854 
22.50 
52.00 
15.00 
gray. 
6460 
Dec. —, 1854 
Lt. Trowbiidge. 
T. A. Szabo.. 
27.75 
16.50 
LARUS LEUCOPTERUS, Faber. 
The White-winged Gnll. 
Larus leucopterus, Faber, Prodr. Is]. Orn. 1820, 91.— Bonap. Syn. 1828, No. 301.— Rich. & Sw, F. B. A. II, 1831, 
418.— Nutt. Man. II, 1834, 305.— Aud. Birds Amer. VII, 1844, 159 ; pi. ccccxlvii. 
Laroides leucopterus, Bruch, Cab. Journ. 1855, 281. 
Leucus leucopterus, Bon. Cons. Av. II, 1856, 217. 
“ Larus islandicus, Edmonston.” 
Larus glaucoides, Temm. 
Sp. Ch. — Adult. Back and wings pale bluish gray ; the terminal part of the quills and their shafts, as well as the rest of the 
plumage pure white ; bill bright yellow, with an orange red spot on the lower mandible towards the end ; legs and feet pale flesh 
color. 
Length, 26 inches ; wing, 17| ; tail, 6|; bill about 2 ; tarsi, 2£. 
Hab. —Arctic seas, Baffin’s Bay, Labrador. 
LARUS CHALCOPTERUS, Lawrence. 
The Gray-winged Gull. 
“ Laroides chalcopterus, Licht.” Bruch, Rev. Lar. in Cab. Jour. 1855, 282. 
Leucus chalcopterus, Bon. Cons. Av. II, 1856, 216. 
The only notice of this species I have met with is in Bruch’s Monograph of Gulls, referred to 
above ; his description is as follows : 
“ Resembles very much L. leucopterus , except in the wing feathers, which are ash gray with 
round white spotted points ; the young are dark gray like L. glaucopterus.” 
Hab .—“American coast of Behring’s Straits and Greenland.” 
