since no one has answered you... I thought I would let you know my rat killed and ate my two gerbils. I let her out for a while and she found a way into the gerbil cage and she attacked them. ick. Another rat I had killed it's cage mate (rat).
Yes.
Unless the birds were raised together you will have a dead parakeet or parrolett. Parroletts are VERY VERY territorial and unless raised together the parrolett will try to chase off or kill your parakeet.
sometimes
A budgie and a parakeet are the same thing.
No you can't the Alexander parakeet.
The longer the better, and it all depends on you and your schedule. A lone parakeet will benefit and be tamer the longer you spend together.
YES, but only after the American parakeet beats the English parakeet in a revolution.
not if there freinds
if you mean catch a parakeet and put it in a cage in the zoo , then yes.
yes
Yes, I believe they can.
take it to the vet