What color are the Willow Warbler's upper parts generally described as?
Answer
Yellowish-green
Physically, the Willow Warbler is described as being yellowish-green on the upper parts, fading to pale yellowish-white or off-white underneath.
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What factor significantly contributes to the perception that the Willow Warbler might be a rare visitor?What color are the Willow Warbler's upper parts generally described as?What is a key identification feature often requiring a close look?How does the Willow Warbler’s song reliably differ from that of the Chiffchaff?How is the final part of the Willow Warbler's characteristic song often described?What phrase transcription is often used to represent the Willow Warbler's song?What is the approximate one-way migration distance estimated for a bird breeding in the UK to reach central Africa?Where does the Willow Warbler’s breeding range extend to in the east?Which habitat element do Willow Warblers tend to avoid?What is the Willow Warbler considered in the UK during the summer period?How does the movement of the Willow Warbler often appear in contrast to the Chiffchaff?