https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/4024232
Blue Duck (Whio),
Blue-grey with a flecked chestnut breast, the whio blends into its rock and water environment, often hiding in overhanging vegetation on the banks where it roosts and nests.
The whio has large, webbed feet to give it power in fast-flowing water, and well-developed claws for rough terrain. Even hatchlings have oversize feet and strong legs, ready to swim in swift currents and jump onto large rocks and logs.
The duck eats insect larvae – including caddisfly, mayfly and stonefly larvae – which it scrapes off rocks underwater. Its bony bill is protected from abrasion by a fleshy flap. Original public domain image from Flickr
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