When danger lurks, as when a Reticulated Python is nearby, it gives out its characteristic call LINK.
This squirrel, resting on a trunk of a wayside tree, was heard making the same call. However, no predator was seen nearby (see video below).
As it calls, it flicks its tail up and down. This flicking may carry a message as from where the predator is coming from. Vocalisation may be used to warn off the predator or to alert the predator’s presence. Tail flicking and vocalisation can also be an alarm signal.
An earlier post shows the squirrel being mobbed by a bird.
10th October 2019