CHICAGO ACADEMY OF SCIENCES. 
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old ones, the breast is almost all black. I have seen young ones, a year 
old, without any black at all. The Indian name is "^'eefeMncfA." D. 
Abundant in the spring, and the only species which, to niy knowledge, 
breeds in the vicinity of St. Michael's. It nests on Stuart's Ishiiid, and 
I believe also on St. Michael's. One of the first of the geese to arrive in 
the spring. B. 
136. Bernicla canadensis Boie. (567.) Canada Goose. Not 
uncommon at Fort Yukon, where the eggs have been obtained. Also 
obtained by Bischolf at Sitka. D. 
137. Bernicla canadensis var. occidentalis Baird. (567a.) Western 
Goose. Two specimens obtained by Bischoft* at Sitka. D. 
138. Bernicla leucopareia Cas. (568.) White-cheeked Goose. 
Common in the early spring at St. Michael's. B. 
Abundant on the seacoast near the Yukon mouth, where it breeds, but 
very rare at Nulato or farther inland on the Yukon. Eggs obtained at 
Pastolik. D. 
139. Bernicla Htitchinsii Bon. (569.) Hutchins' Goose. The most 
common of all the geese. Breeds at St. Michael's and Pastolik, as well 
as all the way up the river, where it is very common; and takes the 
place of leucopareia, which is rare there. Eggs, six or eight, laid on the 
sand beaches like those of A. Qambelii. Arrives with the latter species, 
and remains till fall, leaving about the end of September. It is not at 
all unlikely that B. Hutchinsii and leucopareia are one species. D. 
14:0. Bernicla nigricans Cas. (571.) Black Brant. Tliis goose 
arrives in immense flocks in the spring along the seacoast, but is rarely 
seen on the Yukon. I killed one, May 29th, 1868, at Nulato, which was 
said to be a very rare visitor. They pass Fort Yukon in the spring, as 
they do St. Michael's, being present but a few days, and breeding on 
the shores of the Arctic Ocean. I was informed at Fort Yukon that it 
is not seen there in the fall. Unlike the white geese, they return to 
Norton Sound in small numbers in the fall. I killed one specimen, a 
female, September 28tii, 1867, at Unalaklik, sittitig on the edge of the 
ice, in a small river at that place. The crop was full of small crustaceans. 
This goose is always lean, tough, and of disagreeable flavor. It is also 
very shy. The few that appear in Norton Sound in the fall, are the last 
of the geese except the canagica. D. 
A few of this species were killed at St. Michael's the season I was 
there ; it was said to be altogether less abundant that spring than ordi- 
narily. It arrives there about the 12th of May ; almost the last of all the 
migratory birds. They were observed in the fall of 1865 on September 
23rd, on their return. 
Usually, the black brant is said to come in immense flocks, and to 
