Erm, I wouldn't recommend it...
Hello morining
Yes.
A budgie and a parakeet are the same thing.
No you can't the Alexander parakeet.
YES, but only after the American parakeet beats the English parakeet in a revolution.
Syrian Hamsters will kill and eat a gerbil, do not put them together in the same cage.
Sanitize the cage and get new bedding and the cage is good as new!
you put it in the same cage with a male hamster
NO. You can not put two different animals in the same cage! This is dangerous. They may fight and the hamster will probably not live. So unless you want a dead hamster, do not put them together.
No they will fight.
Unless the dwarf hamster was in the same litter, I would advise against it. If they are not in the same litter, and you'd like to see if they get along, first put them in a neutral cage. Otherwise the hamster may feel that another male is trying to take over its territory.
no