Common Redpoll illustration
Birdsong field guide

Common Redpoll

Acanthis flammea

A small, resilient finch of the high north, recognized by its crimson forehead patch and black goatee-like chin spot.

What it sounds like

A distinctive, rapid 'chit-chit-chit' flight call and a rising, buzzy 'sweee-et' whistle.

Reference call, compare with what you heard
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Rec. Jesper Lindegren · SwedenCC BY-NC-SAXeno-canto

Field notes

  • Can survive temperatures as low as -65°F by tunneling into snow to utilize its insulating properties.
  • Possesses an esophageal diverticulum, a specialized pouch that allows it to store seeds for later consumption in warmer, sheltered locations.
  • Exhibits dramatic 'irruptive' migration patterns, appearing in large numbers far south of its typical range when northern birch seed crops fail.
  • Highly acrobatic foragers, often hanging upside down from thin birch or alder catkins to reach seeds.
  • Metabolic studies show they can increase their basal metabolic rate by up to 400% to generate body heat during extreme arctic winters.
Habitat
Subarctic birch forests, willow scrub, tundra edges, and weedy fields during winter.
Range
Circumpolar; breeds across northern North America, Europe, and Asia.

Similar & commonly confused birds

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