Can I house a breeding budgie pair with young budgies in one cage?

A breeding pair should be kept alone unless you have one male with two females. If you have two males, they may fight over the hen. The proper environment, nesting box and diet will be necessary for a successful breeding.

It would be best to separate each pair into their own cage as the birds may begin to fight over territory, food and water, perches, and shared nesting areas, which could lead to injury. If you don't wish to have babies, removing the nesting material and any eggs should resolve the issue. If you do wish to breed them, making sure the birds have a calcium supplement such as a cuttle bone can help prevent egg binding and produce healthier eggs in addition to a regular balanced diet.

It depends how large your cage is. The standard minimum cage size recommended by bird professionals is 12- by 18- by 18-inches for a single bird. This cage size is fine if your budgie is outside of the cage most of the time, but if you have a cage-confined budgie, it's going to be much too small to keep your bird happy and healthy.

Hello. If the cage is large enough and there are enough food and water dishes around to eliminate competition, then this should be a fine arrangement. You should monitor their behavior closely when they’re first together for any signs of aggression, though budgies are naturally gregarious birds that live in very large flocks so I suspect this won’t be the case. Good luck!

If the aviary is too small to handle multiple breeding pairs it may be that they are competing for nesting space, even if there are multiple nests. One nest may be seen as "ideal" and thus everyone is fighting over it. Usually, birds are separated into individual breeding groups per cage to avoid competition and ruining of eggs, as well as reduce overall stress for the breeding pair.

Finches do best in pairs. Keeping them with budgies would not be recommended since they may get bullied. Finches also require longer cages that allow them to fly about, while budgies do fine in taller cages because the like to climb.

There should not be a problem if the birds are slightly different ages, as long as they are getting together well and not fighting (something that can happen with same-age birds as well.) Making sure everyone has equal access to food, water, perching space, etc can help prevent fighting, as well as providing a cage that is large enough for both birds to move around, exercise, eat and sleep. The cage you currently have is awfully small, and they only appear to have one perch to sit on, which isn't best. Moving them to a large cage and adding in some more enriching toys and perches is best.