132 University of California Publications in Zoology (Vou. 30

Breeding juncos from Carcross show a distinct approach to the
subspecies hyemalis, as compared with connectens from the Stikine
region, so much so that Careross may be regarded as near the northern.
limit of the range of connectens.

At Careross, May 22, male juncos were singing from the tops of
bushes. and small trees. Females collected during the next few days
had their sets partly laid. Two nests, each with four fresh eggs, were
found near Atlin, May 31. These and other nests subsequently found
were all very much alike. They were all in fairly open bottom land,
on the ground, and well concealed in sheltering grass and other vegeta-
tion. Juncos bred most abundantly in the lowlands, but on-June 30
I found a nest with five fresh eggs on a mountain side at about 3500
feet altitude. The situation was a warm, south-facing slope; the nest
was buried in a dense clump of bear-berry and grass.

On June 26 the first young out of the nest was seen, and from then
on through August spotted young were fairly common in small flocks
threughout the lowlands. During September juncos were migrating
through the region. The last were noted September 19, but from the
number seen that day I am sure that some must linger to a much
later date.

Melospiza lincolnii lincolnii (Audubon). Lincoln Sparrow
Breeding in fair abundance in the disconnected marshy areas that
oceur throughout the lowlands. On June 14 a nest was found with
five eggs at the point of hatching. The first young was seen flying
on July 2. The species was last noted on August 29. Two specimens
(nos. 44892-44893) collected by myself, and others taken by Brooks,
are all typical of the subspecies lincolnit.

Petrochelidon lunifrons lunifrons (Say). Cliff Swallow
Nests were seen on buildings at Careross. The first cliff swallow
was noted there on the evening of May 26, some days after our own
arrival, and when we reached Atlin, May 28, the species was present in
force. It nests in some numbers in the town, but we found it breeding
nowhere else, The last cliff swallow was noted August 16.

Hirundo erythrogaster Boddaert. Barn Swallow

This species arrived at Carcross on the morning of May 26. Old
nests were seen on several houses there. It was abundant in the town
of Atlin, but was not found nesting elsewhere. Last noted September 1.