Blink !

Posted by
Avian Grey (London, United Kingdom) on 1 April 2016 in Animal & Insect.

:
Herons have a second transparent eyelid used to clean or wipe the eye without losing vision - essential in a spray environment such as when catching a fish. In the right-hand image here, you see that eyelid 'closed'.

Wiki

- AG

NIKON D300 1/400 second F/11.0 ISO 200 202 mm (35mm equiv.)

Avian Grey is sister site to American Grey | light and features bird photography that seems to form an increasing part of my current portfolio. My thanks go to Henry the Heron who became very much my passport to the Avian World.

- AG

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This image has been featured in 1 Remix collection.

Beautiful Birds by Ruthiebear

NIKON D300
1/400 second
F/11.0
ISO 200
202 mm (35mm equiv.)

heron
eye