With gliders being territorial you can never tell how they will accept or
reject a new glider to the group. just dropping in a new glider in greatly
raises the possibility of a death. I have seen some do it on youtube and
you can see the first glider starts off very unhappy. you never now if that
night or the next day things could go bad.
with scent training your getting both gliders used to the new smells, and
reducing that chance the original glider will reject and try to fight off the
unwanted intruder.
so all the work isn't any guarantee, just an attempt to increase the odds.
one breeder I read said they had one single glider that had rejected 3 different
glider introductions is just wants to be alone.
My gus is king of the 6 glider colony, he completely rejected the return of 2 gliders that used to be in the colony when it was at 9 gliders. I feel is
aggressive behavior will no longer allow ANY additions. even at snack time he
doesn't like the other gliders around if he has a LIVE mealworm, so I have to
carefully watch him until all mealies are gone.