So far I can...but soon I probably wont be able to....especially with the Australorps as they are all losing their individual chick markings for the black feathering.....its going to make it VERY TOUGH to identify them...though Im sure they will have individual markings of some sort.
Id think a logbook and photos would be better for that. But Im new to raising chickens, Ive only had my first 20 for a month or so...10 Black Australorps, 10 light Brahmas...