Smith's Longspur

Smith's longspur ~ This longspur nests above the northern treeline along the Arctic Ocean coastlines from northern Ontario …

Thick-billed Longspur

Thick-billed longspur ~ Thick-billed Longspurs are most conspicuous in summer when the males perform flight-song displays singi…

Chestnut-collared Longspur

Chestnut-collared longspur ~ Predicted population cores 25 50 and 75 of breeding chestnut-collared longspurs Calcarius ornatus …

Lapland Longspur

Lapland longspur ~ The male and female birds look similar but the female bird is usually slightly smaller than the male. Laplan…