I'm looking at setting up several breeding pens for my dorkings, and plan to set 3 or 4 lines of each color variety (red, colored, silver grey). I'm trying to figure out an identification system to keep track of which roos/hens are related to whoever, so that they don't need to stay in the breeding pens all year long, but can go free range when i'm not collecting eggs for hatching. I've heard about toe punching and wing banding, but really don't want to go that route, especially since some birds are already adults, and others are in the grow-out pen. so far ID isn't an issue as they're all in different pens right now at different ages, but this coming summer I hope to have at least 2 lines up and going, and add the others as i go. that's why i'm trying to come up with a system now.