646 APPENDIX B. 
7. (42). Larus glaucus (Biunn). 
GLAUCOUS GULL; BURGOMASTER. 
Indiana.—Occasional visitor on Lake Michigan.—Butler. 
Michigan.—Rare.—Cook. 
Ontario.—Lake Ontario—Mcllwraith. 
8. (58). Larus atricilla Linn. 
LAUGHING GULL. 
Pennsylvania.—Not common migrant on Delaware river and larger streams.—Warren. 
Michigan.—Divergent opinions as to abundance, but several positive records.—Cook 
9. (59). Larus franklinii Sw. and Rich. 
FRANKLIN GULL. 
Indiana.—Occasional Migrant; has been several times seen in Michigan City.—Butler. 
Michigan.—Not rare on Lake Michigan during winter and Spring.—Gibbs (Cook). 
Ontario.—Hamilton, two records; others probable—Mcllwraith. 
10. (65). Sterna maxima Bodd. 
ROYAL TERN. 
Pennsylvania.—Very rare and irregular visitor—Warren. 
Michigan.—Rare on Lake Michigan.—Cook. 
tr. (71). Sterna paradisaea (Brunn). 
ARCTIC TERN. 
Pennsylvania.—Very rare straggler in eastern Pennsylvania—Warren. 
Michigan.—Cook. 
Ontario.—Mcllwraith. 
12. (155). Histrionicus histrionicus (Linn.). 
HARLEQUIN DUCK. 
Michigan.—Very rare.—Cook. 
Ontario.—Lake Ontario, rare—Mcllwraith. 
13. (166). Oidemia perspicillata (Linn.). 
SURF SCOTER. 
Pennsylvania.—Rather rare migrant and winter resident. One specimen obtained from 
flock of twenty at Erie—Warren. 
Michigan.—Very rare; winter visitor—Cook. 
Ontario.—Lake Ontario in limited numbers.—MclIl wraith. 
