The common name and Latin binomial commemorate the Norwegian ornithologist Leonhard Hess Stejneger.
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It is a small bird 11.5–13 cm long, very closely similar to the Siberian Stonechat in both plumage and behaviour, differing in only small details, notably having a slightly broader-based bill 4.7–5.7 mm wide (4.0–4.9 mm wide in Siberian Stonechat) and slightly less white on the rump.
European Stonechat | Siberian Stonechat | Leonhard Hess Stejneger |