i should say i keep notes on what birds came from were and egg color anbd breeder they canme from . i made a excell program for my small breeding that has leg band numbers and stuff,... ytou clicl on leg mand and picture of bird appears . its very primative but if anyone wants i can sebnd it i think ,,, its for 15 or so birds but can be made larger i am sure someone who knows about computers and excell could make a better oine then me a carpenter... i just like know what biiird is fromm were and after a few years i tend to forget so i keep notes