unfamiliar gliders should be put together following an introduction
process. failure to follow a good introduction process can lead to
glider defending their territory and killing unwanted intruders.
glider bite usually just like any other animal. they are scared and
defending themselves. you need to work on the glider to feel you
are safe and not a threat. there are many and many ways to do this.
do a search you will find a ton of options, for bonding.