BIRDS OF COLORADO. 
59 
172a. Branta canadensis hutchinsii. Hutchins’s Goose. 
Migratory ; common. Not quite so common as the Canada 
Goose and breeding only north of the United States. Passes 
through in migration spring and fall and a few may winter, 
since it has been taken as late as December. 
173. Branta bernicla. Brant. 
Migratory ; rare or accidental. An eastern species seldom 
coming so far west as Colorado. A specimen was shot by Capt. 
P. M. Thorne at Fort Lyon, April ii, 1883, and though it was 
not preserved there can scarcely be any doubt of the correctness 
of the identification. 
180. Olor columbianus. Whistling Swan. 
Migratory ; not common. In former years Swans were 
fairly common over much of western North America, Now 
they are rare anywhere but are still found in migration in Colo- 
rado. H. G. Smith mentions four cases of the occurrence of 
the Whistling Swan at various places in eastern Colorado and 
says he has heard of others. (Nidologist, III. 1896, 48.) 
One was shot from a flock of three at Fort Collins, March 16, 
1895 preserved by a local taxidermist. 
181. Olor buccinator. Trumpeter Swan. 
Migratory; rare. Apparently not so common as the last 
species. There was a specimen in the Maxwell collection and 
H. G. Smith reports two instances that have come to his knowl- 
edge. It has never been known to breed in Colorado, though 
breeding but a little farther north in the Mississippi Valley. 
One was shot during the fall of 1896 near Fort Collins. 
183. Ajaja ajaja. Roseate Spoonbill. 
Accidental visitant; two instances. A southern species 
not regularly occurring north of the Gulf States. In a letter 
dated June 17, 1888, T. M. Trippe, of Howardsville, Colo., 
writes to C. F. Morrison, as follows: “A Rosy Spoonbill was 
captured at Silverton, Colo., the other day. It was caught 
alive, but died in a day or two. It was a female in fine spring 
plumage.” (O. & O. XIII. 1888, 181.) H. G. Smith notes a 
specimen in very worn plumage August 8, 1890. Said to have 
been taken near Pueblo. (Nidologist, III. 1896, 65.) 
184. Guara alba. White Ibis. 
Migratory; rare. A southern species, but once known to 
have been taken in Colorado, but since it has been taken at 
Great Salt Lake to the west and up the Mississippi Valley to 
South Dakota, its occurrence in Colorado may not be acci- 
