My dad has had over 15 bengies in his aviary with budgies for over 10 years and never once had a problem its lovebirds that bite the feet off birds, finches get out the way fast enuff but ide never have lovebirds in mine

I used to work an an animal santuary. They took in unwanted birds.

You can put lovebirds, cockatiels and budgies together but not finches.

If you was going to put finches in with anything it MIGHT be ok with budgies but NOT cockatiels or lovebirds.

If i was you i would either stick with the bigger birds or the smaller ones or split your avary into two one for each finches and the larger birds