Zebra finches have a highly developed sense of competitive survival. Hi i had 2 zebra finches a male and female.after an year they had their first baby.everything went well until after two months the mother and the male baby started fighting and finally they killed each other. Neither was lonely and everything worked out great. Zebra finches originate from Australia and Indonesia, and have been kept as pets for centuries. Once I got another zebra finch, he fought with it, so I decided to buy another cage and house them separately. With some careful planning, it's usually possible to stop your finches from fighting with each other. When allowing multiple pairs to breed in one cage, they sometimes have to be separated by a temporary barrier. As social birds, they prefer to be kept with others of their own kind, but occasionally friction can occur between roommates. Some finches (such as the zebra finch and society finch) will mate out in the open, usually on a perch (although sometimes on the ground), while other species (such as the lady gouldian finch, diamond firetail, cut-throat, avadavat, and members of the genus Estrilda) 13 prefer to mate in the privacy of their nest box. Other finches may be more brightly colored, but few are easier to keep successfully than zebra finches. This will solve your problem. They both were in the same room and could communicate with each other. Zebra finches are typically kept in pairs and entertain themselves without a lot of interaction with their owners. Also, keep an eye out for any signs of illness in the finch that was picked on. One nest killing off a neighboring nest gives the aggressors a bigger chance of survival. the father died but he wasn't hurt.The other two bleed badly.How? i have 3 zebra finches (1 male, 2 females) one of the females and the male i introduced to the other female as my male died and the pet shop would not sell them seperately. This species is a good choice if you don't have a lot of time to spend with your pet bird.