|Site Of Nest:
|About half of the species breeds in the
of northeast Asia, the rest nesting in a range from
Alaska to central Canada.
They mainly eat arthropods and
Grey-brown back, brownest in the summer male, and greyest
in winter, a grey breast, sharply demarcated at its lower edge,
which gives this species its English name; this clear
line is particularly conspicuous if the birds are turned towards
the observer. The legs are yellowish, and the bill is olive with
a darker tip.
The juveniles are more brightly patterned above with rufous
colouration and white mantle stripes.
Courtesy of Xeno Canto