1926] Swarth: Birds and Mammals from the Atlin Region 131

these birds were not seen along the wet bottom lands, but they fre-
quented the dry hillsides, where the trailing birch afforded the cover
they favored the most. They were at all times wary and hard to
approach, far more so than most small birds, and in contrast to the
actions of the several species of Spizella and Zonotrichia with which
they were associated.

During the last week in July and the first week in August, spotted
young were seen being fed by their parents, but mostly the young were
larger, undergoing the post-juvenal molt. The species might easily
be overlooked, for besides their habitual wariness the birds are with
difficulty dislodged from the sheltering cover they frequent. If flushed
at a distance from the tops of the balsam thickets on which they often
perched when suspicious of danger (and they rarely permitted a near
approach), the timber-line sparrow might easily be overlooked amid
the tree sparrows, chipping sparrows, and even the Zonotrichias,
which were in the same surroundings and arising from the bushes
near at hand. When flushed they flew long distances, to dive into birch
thickets, tangled masses of shrubbery about waist high, and it was
rarely that a bird could be dislodged from such a refuge. They ran
beneath the shrubbery, to take flight at some distant point, and such
tactics, repeated over and over again, inevitably left the person in
pursuit floundering clumsily through entangling branches far behind.

So, although the species was really abundant in some places, such
as on certain of the higher slopes of Spruce Mountain, we secured
relatively few specimens.

Together, we collected twenty-three skins, as follows: adult male,
3; adult female, 4; immature, first winter plumage, 4; juvenal, 6;
molting from juvenal to first winter, 6. Fifteen of these (nos. 44842—
44856) came to the Museum of Vertebrate Zoology. Two of this series
have since been deposited in the United States National Museum.

Junco hyemalis connectens Coues. Cassiar Junco

Thirty-five specimens of junco were collected (nos. 44857-44891) ,
sixteen breeding adults (thirteen of these from Carcross), the
remainder comprising some streaked juveniles and adults and
immature in fall plumage. I am listing these all as of the subspecies
connectens; but there are equivocal specimens in the series (among
migrants collected toward the end of the summer) that would fit as
readily into a series of hyemalis.