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. 



. IBIDID^.— Ibises. 



Genus Plegadis, Kaup. 



34. P. i^Hrtrrnoirt (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. 



ARDEID^.— Ilercns. 

 Genus Hydranassa, Baird. 



35. H. tricolor Indorkiana (Wils.) Ridgw. Louisiana Heron. — S. Un- 

 doubtedly occurs in Southern Illinois. Has been observed in Indiana (near 

 Hanna, June, 1876; see Nelson, Ball. Nutt. Orn. Club, April, 1877, p. 51.) 



ANATIDJil.— 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. 



87. D.fulva (Gmel.) Burm. Fulvous Tree Duck. — S. W. Possibly occurs 

 in the extreme south of the state. 



Genus NoMONYx, Ridgway. 



88. N. dominiciis (Linn.) Ridgw. Masked Duck. — S. Has been obtained 

 in Wisconsin and at Lake Chaiuplain (references not at hand). 



LARID-^E. — 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. macriira, 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 Hydrochelidon, Boie. 



41. H. Jeucoptera (Weisn. & Schinz) Boie. White-winged Black Tern. — 

 European Straggler. Possibly occurring as a straggler. Has been obtained in 

 Wisconsin (Coues, Check List, 1873, 575 his.] 



PODICIPEDID^.— Grebes. 



Genus ^chmophorus, Coues. 



42. >^. occiWeuteWs (Lawr.) Coues. Western Grebe.— W. ' Possibly occur- 

 ring on the larger bodies of water. 



