What is the primary difference between the Whimbrel's bill structure and the Curlew's bill structure relative to the bird's head?
Answer
The Curlew's bill is significantly longer than its head, whereas the Whimbrel’s bill is closer to the length of its head.
A quick way to estimate bill length is to compare it to the head; a Curlew's bill is significantly longer than its head, whereas the Whimbrel’s bill is closer to the length of its head.
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