1926] Swarth: Birds and Mammals from the Atlin Region 61

101. Dendroica coronata hooveri McGregor

102. Dendroica striata (J. R. Forster)

103. Dendroica townsendi (J. K. Townsend)

104. Seiurus noveboracensis notabilis Ridgway
105. Geothlypis trichas occidentalis Brewster

106. Wilsonia pusilla pileolata (Pallas)

107. Setophaga ruticilla (Linnaeus)

108. Anthus rubescens (Tunstall)

109. Sitta canadensis Linnaeus

110. Penthestes atricapillus septentrionalis (Harris)
111. Penthestes gambeli abbreviatus Grinnell
112. Penthestes hudsonicus columbianus (Rhoads)
113. Regulus satrapa olivaceus Baird

114. Regulus calendula calendula (Linnaeus)
115. Myadestes townsendi (Audubon)

116. Hylocichla ustulata swainsoni (Tschudi)
117. Hylocichla guttata guttata (Pallas)

118. Hylocichla guttata pallasii (Cabanis)

119. Planesticus migratorius migratorius (Linnaeus)
120. Ixoreus naevius meruloides (Swainson)

121. Sialia ecurrucoides (Bechstein)

GENERAL ACCOUNTS OF THE BIRDS
Colymbus holboellii (Reinhardt). Holboell Grebe

Present during our entire stay in the region. Pairs were seen in
various lakes, large and small; and early in June the curious courting
antics were commonly observed. No nests were found, nor were any
young birds seen.

Colymbus auritus Linnaeus. Horned Grebe

A pair or more could be found on every lake, large or small. Seen
at Carcross, May 22, and a single bird was noted near Atlin on
September 21, my last day afield. Migrating in numbers during the
second and third weeks in September.

On July 18 a nest was found in a small lake at the head of Cafion
Creek, about 3500 feet altitude. The young birds had apparently but
just hatched. They, with one parent, were occupying the nest when
it was found, and the family, as observed from a distance, returned
to it when I left. The nest was a cireular mass of sodden grass floating
amid a sparse growth of short, green grass, about three feet from the

shore. It was somewhat hidden by a small willow overhanging from
the adjacent bank.