Can 2 girl parakeets and 1 boy parakeet live well in the same cage?

I know that parakeets are social birds, and in the pet store they are grouped with other parakeets that are different genders too. Yesterday I got a third parakeet, a girl, and put her in with the boy and girl I already had. today, the girl, I already had, and the new bird will not let my boy sit on the same perch, or eat when they are eating. All if he does, she will chase him away. is there only temporary? What do I do to stop it? Please someone help.

Can my two male syrian hamsters live in the same room in different cages?

I have 2 male hamsters in different cages, their cages are right opposite each other in the same room. One of hamsters seems to be a little bit nervous however this could just be him getting used to his new home although i have had him since 15th May 2008. I got them both at the same time from the same pet shop where they were housed together. Should I keep them in separate rooms or will they be okay?

Is a Campbells Dwarf Hamster different from a russian dwarf or are all dwarf hamsters the same?

I ask because I read that campbells dwarf hamsters are prone to diabetes so should not be given fruit. Wondering if the same holds true for russian dwarf.

What 2 hamsters can i buy that will be able to live together in the same cage?

I am going to buy some hamsters on the weekend. I’m going to buy 2. I want to know what kinds of hamsters i can buy that would be able to live together in the same cage.