Tony Chua captured a Common Kingfisher (Alcedo atthis) in the act of casting a pellet.
The image above shows the oval white pellet at the base of the loser mandible just before it was ejected.
The second image (above) shows the tongue where the pellet was after the latter was ejected. The pellet can clearly be seen on the right, behind the kingfisher, no doubt blown by the wind.
The whiteness is due to the undigested remnants of its recent food, fish bones, of its last meal.
10th February 2016
This post is a cooperative effort between Birds, Insects N Creatures Of Asia and BESG to bring the study of birds and their behavior through photography and videography to a wider audience.