Lesser Redpoll vs Arctic Redpoll

In short

The bill size and shape is the most reliable field mark: the Arctic Redpoll has a distinctly smaller and stubbier bill compared to the Lesser Redpoll. Both species have similar plumage but differ in overall paleness, with the Arctic Redpoll appearing whiter and frostier.

Identification tips

1. Bill size and shape: Arctic Redpoll has a smaller, stubbier bill. 2. Overall paleness: Arctic Redpolls appear whiter and less streaked. 3. Habitat: Consider the habitat; Arctic Redpolls prefer more open areas. 4. Vocalization: Listen for the softer call of the Arctic Redpoll. 5. Seasonal variation: In winter, plumage differences can be more pronounced.

Size

The Arctic Redpoll is slightly larger and bulkier than the Lesser Redpoll, though this can be subtle in the field.

Plumage

Arctic Redpolls are generally paler, with a whiter, frostier appearance and less streaking on the flanks compared to the browner and more heavily streaked Lesser Redpolls. Both have a red forehead patch but the Arctic Redpoll's is often more pronounced.

Behaviour

Both species exhibit similar behaviors, often seen in flocks and feeding on seeds in trees or on the ground.

Habitat

Lesser Redpolls are more commonly found in woodland and scrub, while Arctic Redpolls prefer more open, tundra-like habitats, though both can overlap in winter.

Voice

Their calls are similar, but the Arctic Redpoll's call is softer and more 'chup'-like compared to the sharper call of the Lesser Redpoll.