Ziggy came in with only 17 grams. This weight makes him a mature male. Feathertail gliders do not survive alone because they can not control their body temperature.
So we took him in and waited patiently till we could get hold of some more buddies. These little guys are rarely found because of their size. But eventually it worked out and we got two more females for him. After making sure they would accept each other, the whole group was released later on.