What distinguishing feature marks the Fieldfare's head, setting it apart from the Redwing's prominent facial stripe?
Answer
It has a more distinctly pale, greyish head and nape
The Fieldfare possesses a noticeable difference in its head coloration when compared to the Redwing. The Fieldfare is characterized by having a head and nape region that is distinctly pale and greyish. This contrasts sharply with the Redwing, whose key identification feature is the striking, well-defined cream or pale yellow supercilium above the eye set against a darker eye-stripe. Although the Fieldfare also has a supercilium, it is typically paler, perhaps more whitish, and less prominent due to the overall grey cast of the head structure.

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BTO Garden BirdWatch - Telling apart Redwing and Fieldfare
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