1168 REPORT OF STATK GEOLOGIST. 



FAMILY LARID./E. GULLS AND TERNS. 



SUBFAMILY LARIN^E. GULLS. 

 GENUS RISSA STEPHENS. 



7. (40). Kissa tridactyla (LiNN.). 



Kittiwake Gull. 



Illinois and Wisconsin, rare winter visitor (Nelson, N. E. 111., p. 

 146; Ridgway, 111. Orn., II., pp. 221-2); Ohio, rare winter visitor 

 (Wheaton, p. 549); Michigan, rare (Gibbs, p. 495); Illinois (Woodruff, 

 in letter). 



GENUS LARUS LINN^US. 



8. (47). Larus marinus LINN. 



Great Black-backed Gull. 



Kent County, Mich., March 28, 1889, White. (Cook, Mich., p. 

 32.) Illinois, winter resident (Nelson, N. E. 111., p. 145); Ohio, rare 

 winter visitor (Wheaton, p. 547); Michigan, rare (Gibbs, p. 495). 



9. (51). Larus argentatus BRUNN. 



Herring Gull. 



Ridgway (111. Orn., Vol. II.) thinks its occurence doubtful. Illinois, 

 rare winter visitor (Nelson, N. E. 111., p. 145). 



10. (58). Larus atricilla LINN. 



Laughing Gull. 



Washtenaw County, 1 specimen, 1884, Watkins (Cook, Mich.); Illi- 

 nois, rare summer visitor southward (Ridgway Cat., p. 202); Michigan, 

 abundant (?) (Gibbs, p. 495). 



GENUS XEMA LEACH. 



11. (62). Xema sabinii (SAB.). 



Sabine's Gull. 



Illinois, rare winter visitor to Lake Michigan (Ridgway, 111. Orn., 

 II., pp. 237-8) (Ridgway Cat,, p. 202); Ohio, accidental on Lake Erie 

 (Wheaton, p. 552). 



