Pine Siskin

The Pine Siskin is a small, slender finch, heavily streaked overall in brown and buff, that can look almost sparrow-like at first glance until it flashes bright yellow patches at the base of the wings and tail. The bill is notably thin and sharply pointed compared to most other finches, an adaptation for extracting seeds from conifer cones and thistle heads.

The amount of yellow in the plumage is variable between individuals, with some birds showing extensive yellow in the wings while others show very little, but the overall streaky brown pattern and small, active, acrobatic behavior are consistent.

Key field marks

• Small size with heavy brown streaking overall
• Thin, sharply pointed bill (unlike the stubbier bill of most finches)
• Yellow patches at the base of the flight feathers and tail, most visible in flight
• Notched tail and relatively short wings

Similar species

• Female and immature American Goldfinches are also streaky and yellowish but have a stouter, conical bill and lack the siskin's fine overall streaking.
• Female House Finches are larger, plainer brown, and lack the yellow wing and tail flashes.

Pine Siskins breed across the boreal forest of Canada and Alaska, the Pacific coast ranges, and higher-elevation coniferous forests farther south in the western mountains and Appalachians. They favor conifer-dominated woodlands but also use mixed and deciduous woods.

The species is a classic irruptive migrant: in years when conifer seed crops fail across the boreal forest, large numbers move far south of their usual winter range in search of food, sometimes reaching the Gulf Coast, while in years of good cone crops they may stay largely in the north.

Pine Siskins are highly social and acrobatic, often feeding in tight, twittering flocks that cling to cone tips and hang upside-down while extracting seeds, much like a small parrot. They readily mix with goldfinches and redpolls at feeders, showing a strong preference for nyjer/thistle seed.

The voice includes a distinctive rising, buzzy "zzzreeeee" call unlike that of any other common feeder finch, along with twittering chatter given by flocks in flight. Diet is dominated by conifer and other small seeds, supplemented by insects, especially when feeding young. Nests are shallow cups built well out on a horizontal conifer branch, often in loose colonies, with three to five pale, lightly spotted eggs per clutch.