Rougequeue d'Eversmann vs Rougequeue à calotte blanche

The white cap of the White-capped Redstart is the most reliable field mark to distinguish it from the Rufous-backed Redstart, which lacks this feature. Both species share a similar overall structure, but their plumage differences are key for identification.

Look for the white cap on the head of the White-capped Redstart. In contrast, the Rufous-backed Redstart has a more uniform rufous coloration on its back without the white cap.

The White-capped Redstart has a distinctive white cap on its head, contrasting with its dark body, while the Rufous-backed Redstart lacks this feature and instead has a more uniform rufous back.