Poor suirrel babies.
I don’t know why but a lot of animals do that.
My father loves birds (actually I like them in nature not as pets) but my father really treats them well. So he always has a lot of baby birds to take care because sometimes mothers don’t care about them. Don’t feed them or push them off the nest !
funny thing is he also has extremely caring mothers that adopt others babies. It’s funny to see a nest with different birds but the mother treats everyone equally!