iiN DAVENPORT ACADEMY OF NATURAL SCIENCES. 



[B 589, R 615, C 721, U 149.] 

 Aythya affnis (Kyt.). Lesser Scaup Duck. Migratory; rather 

 common. 



[]) 590, R 616, C 722, U t.50]. 

 Aythya collaris (Donov.). Ring-necked Duck. Spring and fall 

 migrant; abundant from the middle of March to the middle of April, 

 and from the middle of October to the middle of November. Some- 

 times winters about the rapids in the streams, even in the northern part 

 of the State. 



Genus GLAUCIONETTA Rtejneger. 

 [B 593, R 620, C 725, U 151.] 

 Glaucionetta clangula americana (Bonap.). American Golden-eye. 

 Migrant; rare. During several years past only a few have been ob- 

 served within the limits of the State. 



Genus CHARITON ETTA Stkjneger. 

 [B595, R 621, C 727, U 1 53-] 

 Charitonetta albeola (Linn.). Buffle-head. Spring and fall migrant; 

 common. 



Genus ERISMATURA Bonaparte. 

 I B 609, R 634, C 741, U 167.] 

 Erismatura rubida (Wils.). Ruddy Duck. Migratory, not very 

 common. 



Subfamily ANSERINjE. Geese. 

 Genus CHEN Boie. 



[B , R 591 a, C 696, I" 1 69. 1 



Chen hyperborea (Pall.). Lesser Snow Goose. Not uncommon 

 during periods of migration. 



Genus ANSER Brisson. 

 [B 565, 566, R 593 a, C 693, U 171 a.] 

 Anser albifrons gambeli (Hard.). American White-fronted Goose. 

 Abundant during both spring and fall migrations. 



Genus BRANTA Scopoli. 



[B567, R 594, C 702, U 172.] 

 Branta canadensis (Lirin.). Canada Goose. Migratory; common. 

 Breeds in the vicinity of Spirit Lake and other localities in Northern 

 Iowa. 



I B 569, R 594 (7, C 704, U 172 a. I 

 Branta canadensis hutchinsii (Sw. & Rich.). Hutchins' Goose. 

 Migratory; not uncommon. 



