Johnny Wee’s images of a Tiger Shrike (Lanius tigrinus) casting a pellet capture the process from start to finish. As the shrike widens its gape as if to vomit, its tongue is exposed (above).
Immediately after, the first sign of the pellet can be seen emerging from between the mandibles (above, below).
This is followed by the large black pellet emerging from its mouth to fall to the ground below (below).
If the pellet can be located, the indigestible parts of the shrike’s food can be dissected and identified, especially if they are bones.
A PDF on pellet casting by local birds can be accessed HERE.
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.