I've browsed around reading of leg bands, food colouring dots, etc....what do you think? I only have 6 - 2 barred rocks and 4 red stars, less than a week old. I want to handle each of them enough for them to get used to it...but I don't know which ones I've handled and which I haven't. I suppose I could handle one at a time, putting them into a box until I've handled each...but that seems like it would cause a negative association with being handled. Thoughts?