1926] Swarth: Birds and Mammals from the Atlin Region 73

two could be found wherever conditions were favorable, a gravelly or
sandy shore being the main requisite. The birds were noisy and
solicitous on the breeding grounds. The sitting bird left the nest at
the first appearance of an intruder in the distance, and male and
female together hovered about, calling overhead or fluttering painfully
over the ground with wings and tail outspread and dragging.

A nest was found June 10, containing four eggs, heavily incubated.
This was in a gravelly area of wide expanse where Pine Creek empties
into Atlin Lake, a locality that held at least three pairs of the plovers.
The nest was in hard gravel, a depression about one inch deep and
with vertical, sharply defined walls, the hole partly filled with
small chips of wood and a few coarse straws. The eggs were placed
perpendicularly, points down.

On June 20 the first young were seen, just hatched. The last semi-
palmated plover, a single bird, was seen at Como Lake, August 21.
Two specimens were collected (nos. 44656-44657), both newly hatched
young, one taken June 20, the other, July 21.

Aphriza virgata (Gmelin). Surf-bird

A single bird was shot by Brooks at Carcross, on the morning of
May 27. It was taken at the same spot as the wandering tattler of
two days before.

Dendragapus obscurus flemingi Taverner. Fleming Grouse

Nine specimens were collected by me (nos. 44658-44665, and one,
unnumbered, presented to Allan Brooks). The series includes one
small chick changing from natal down to juvenal plumage; one young
male nearly through the post-juvenal molt; two old cocks, two years
old or more; two males of the previous summer; two females in fully
acquired first winter plumage; one adult female just through the
annual molt. Brooks collected additional specimens, old and young,
all of which I examined, and there are at hand, from previous expedi-
tions in northern British Columbia, five adult females and three birds
in juvenal plumage throughout. During the late fall following my
departure from Atlin, Mr. A. B. Taylor, of that place, secured for me
twelve additional specimens (nos. 46091-46102), six males and six
females, some fully adult and some birds of the year. These constitute
an invaluable series, as all are in freshly acquired fall plumage.