martes, 5 de febrero de 2019

Video: Watch a Black Heron Fool Fish by Turning Into an Umbrella

Most of the time, Black Herons look like your typical wading bird—long legs, long necks, long beaks. But when it's time to eat, this jet-black African species has a pretty nifty trick up its wings: It turns into an umbrella.  

Not literally, of course. But while fishing, the bird will tuck its head down, spread its wings around its body, and create a sun shade of sorts. The behavior, known as canopy feeding, was perfectly captured in the above video by Paul Wheatley, a Leeds-based nature videographer on a trip to Gambia. The heron didn’t seem to be bothered by his presence as it fished on Lake Kotu, and Wheatley managed to phonescope four minutes of the bird swiftly covering its face before snapping up prey.

But what exactly is the purpose of this behavior? 


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