Based on these characteristic below:
how is this species maintaining homeostasis?

feeds on local butterflies
inflates itself when scared
lays eggs
lives close to a lake
burrows in the ground
appears to have a greenish-brown skin color
communicates through sounds

inflates itself when scared

Explanation:

Homeostasis is the process by which organisms undergo to maintain a constant internal environment for internal processes to occur. Hence, the answer would be that which acts to counter any external stimuli which causes change in the body's environment, not simply factors involved in the survival of the species such as feeding and camouflaging.