brazil pantanal

Jibóia

These days we had an unexpected surprise. Suddenly, a Boa constrictor (Boa constrictor amarali, jibóia) fell off a tree just next to one of us. The snake was holding on a Chaco Chachalaca (Ortalis canicollisAracuã), which it had killed by constriction up in the tree. The bird was already 20 cm down the snake's throat.
The same way we heard the blunt noise of the snake hitting the ground, a fox also did and came to inspect and challenged the snake. At this point snakes are completely vulnerable because they've got their mouth full! Seeing no alternative, the snake had to regurgitate the bird and then hiss to the fox ...

The forked tongue is used to smell.

Just regurgitated the bird.