age?poor health when you got it?diet?didnt have gravel or other bird needs like cuttle bone?stress?drafts or chills?egg bound? or was laying too many eggs and stressed out the bird (they should not be allowed to lay over and over)get a book on finches - or talk to a reputable bird person (some pet store people dont know much about animals - they just know how to sell them)find a finch websiteprobably better to have in pairs but I dont think that would kill themsorry
