Kaustuv Chatterjee
08-02-2014, 05:13 PM
The call is a loud rather metallic tuk…tuk…tuk (or tunk), reminiscent of a copper sheet being beaten, giving the bird its name. Repeated monotonously for long periods, starting with a subdued tuk and building up to an even volume and tempo, the latter varying from 108 to 121 per minute and can continue with as many as 204 notes. They are silent and do not call in winter.[3]
The beak remains shut during each call - a patch of bare skin on both sides of the throat inflates and collapses with each tuk like a rubber bulb and the head is bobbed.
Shot with the Nikon D90, Nikkor 300mm F4 + TC14E, at 420mm, ISO 250, 1/500s - F/7.1, +0.7EV
The beak remains shut during each call - a patch of bare skin on both sides of the throat inflates and collapses with each tuk like a rubber bulb and the head is bobbed.
Shot with the Nikon D90, Nikkor 300mm F4 + TC14E, at 420mm, ISO 250, 1/500s - F/7.1, +0.7EV