BIBDS OF KANSAS. 



Genus ERISMATURA Bonapaexe. 



B. 609. R. 634. C. 741. G. 299. U. 167. 



41. Erismatura rubida (Wils.). Ruddy Duck. Migratory; quite common. 

 Arrive the last of March to last of April. 



Subfamily ANSERINv^. Geese. 

 Genus CHEN Boie. 



B. 564. R. 590. C. 694. G. 276. U. — . 

 [ Chen caerulescens (Linn.). Blue Goose. This bird has been dropped from the 

 body of the A. O. U. list, and included in the hypothetical list, on account of 

 the possibility, if not probability, that it is a colored phase of Chen hyperborea. 

 The plumage of the specimens that have come under my observation in both the 

 adult and young stages, is certainly very distinct from C. hyperborea, and in my 

 opinion the bird will eventually be declared a valid species, and restored to the 

 list.] 



B. — . R. 591a. C. 696. G. 277. U. 169. 



42. Chen hyperborea (Pall.). Lesser Snow Goose. Abimdant in migration. 

 A few occasionally linger into winter. Arrive early in March. 



Genus ANSER Bkisson. 



B. 565, 566. R. 593a. C. 693. G. 278. U. 171a. 



43. Anser albifrons g-ambeli (Haetl.). American White-fronted Goose. Mi- 

 gratory; common. Arrive in March. 



Genus BRANTA Scopoli. 



B. 567. R. 594. C. 702. G. 279. U. 172. 



44. Branta canadensis (Linn.). Canada Goose. Common migrants. A few 

 remain during the winter, retiring only when the extreme cold weather closes 

 their watery resorts. Leave in March. 



B. 569. R. 594a. C. 704. G. 280. U. 172a. 



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

 tory; abundant. A few linger into winter. Leave in March. 



B. 570. R. 595. C. 700. G. 281. U. 173. 



46. Branta bernicla (Linn.). Brant. Rare; accidental migrants. 



Subfamily CYGNIN>^. Swans. 

 Genus OLOR Waglee. 



B. 561a. R. 588. C. 689. G. 274. U. 180. 



47. Olor columbianus (Oed.). Whistling Swan. Migratory; rare. Arrive about 

 the middle of March. 



B. 562. R. 589. C. 688. G. 275. U. 181. 



48. Olor buccinator (Rich.). Trumpeter Swan. Migratory; rare. Arrive about 

 the middle of March. 



