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Whio lips

Looking up at a whio's (duck) lips.

The whio has rubbery soft flaps on the end of its bill to help scrape its food off the surfaces of rocks. Look closely, and you’ll also see the sieve-like structures inside the bill. It uses these to sieve larvae and insects.

Rights: Rob Suisted, Nature’s Pic Images
Published: 4 August 2017,Updated: 4 August 2017Size: 3.48 MB