320 WYoMING BIRDS. 
167. Erismatura jamaicensis: Ruddy Duck. 
Common migrant; and occasional winter resident. 
169. Chen hyperboreus hyperboreus: Snow Goose. 
A. rare migrant in this state. The only record that we 
have since 1902 is by Richard, who records that one was 
taken at Cody in the fall of 1910. 
171a. Anser albifrons gambeli: White-fronted Goose. 2 
Bond reported: “I have mounted a fresh specimen which 
was said to have been killed at the Cheyenne Lakes.” 
172. Branta canadensis canadensis: Canada Goose. 
Common migrant over entire state. It is a fairly common 
breeder from the central to the northern portion of the 
state. Probably a part of the records which are now ac- 
credited to this form should belong to hutchinst. 
172a. Branta canadensis hutchinsi: Huchin’s Goose. 
Mr. Lockwood reports this form. Probably many of those 
that are recorded under the previous form really belong 
here. 
180. Olor columbianus: Whistling Swan. 
Lockwood reports this from the Laramie Plains and there 
is one bird in the University Museum. Knight reported a 
Cheyenne record. Skinner reports it as common in the 
Yellowstone. 
181. Olor buccinator: Trumpeter Swan. 
Rare summer resident. Mr. Richard records two speci- 
mens taken during the fall migration of 1909. Metz also 
reported it. Knight gave a few other records. 
ORDER VII. HERODIONES. 
IBIDIDAE (Ibises). 
187. Plegadis guarauna: White-faced Glossy Ibis. 
An uncommon bird in the state. Knight reported it and 
thought it was probably a summer resident. Since then we 
have but one record, that by Mr. Percival. 
