208 
Catalogue of the Birds of Illinois. 
in which the black on the breast of the male is confined to two widely separated 
bars on each side, it undoubtedly occurs as a straggler, and should be looked for, 
especially along the lake shore. 
IBIDIDHL — Ibises. 
Genus Plegadis, Kaup. 
34. P. guarauna (Linn.) Ridgw. White-faced Glossy Ibis. — S. W. Abun- 
dant throughout the west, in suitable localities, from the lower Rio Grande to 
the Columbia river, and doubtless straggles occasionally through the Missis- 
sippi Valley. 
ARDEIDHC. — Herons. 
Genus Hydra n ass a, Baird. 
35. H. tricolor ludoviciana (Wils.) Ridgw. Louisiana Heron. — S. Un- 
doubtedly occurs in Southern Illinois. Has been observed in Indiana (near 
Hanna, June, 1876; see Nelson, Bull. Nutt. Orn. Club, April, 1877, p. 51.) 
ANATIDHE. — Ducks, Geese, and Swans. 
Genus Chen, Boie. 
36. C. rossi (Baird) Ridgw. Ross’s Snow Goose. — N. W. Possibly an 
occasional straggler in winter. 
Genus Dendrocycna, Swainson. 
37. D.fulva (Gmel.) Burm. Fulvous Tree Duck. — S. W. Possibly occurs 
in the extreme south of the state. 
Genus Nomonyx, Ridgway. 
38. N. dominions (Linn.) Ridgw. Masked Duck. — S. Has been obtained 
in Wisconsin and at Lake Champlain (references not at hand). 
LARIDAE. — Gulls, Terns, and Jaegers. 
Genus Sterna, Linnaeus. 
39. S. dougalli , Montag. Rosy Tern.— E. An Atlantic coast species, very 
likely to occur on Lake Michigan. Is recorded from Northern Ohio (Wheaton, 
Ohio Agric. Rep., 1860, 275). 
40. S. macrura , Naum. Arctic Tern.— N. Doubtless a winter visitant to 
the northern portion of the state. Is recorded from Northern Ohio (Wheaton, 
1. c., 274). 
Genus Hydrociielidon, Boie. 
41. H. leucoptera (Weisn. & Schinz) Boie. White-winged Black Tern.— 
European Straggler. Possibly occurring as a straggler. Has been obtained in 
Wisconsin (Coues, Check List, 1873, 575 bis.] 
PODICIPEDIDJE. — Grebes. 
Genus iEcinvioriroRUS, Coues. 
42. JE. occidentalis (Lawr.) Coues. Western Grebe. — W. Possibly occur- 
ring on the larger bodies of water. 
