I have 3 EEs that I hatched out on 2/14 (I guess that makes them about 3wks). I was sure that two were pullets as they started showing tails and wing feathers more quickly than the third. However, it looks like those two are developing what looks like hackle feathers (please don't be more roos!). I decided to feel their legs, and on all 3 I can feel a teeny-tiny bump (size of a grain of sand or so) where spurs would be. I don't know how scientific this is on my part, and I know some pics would be more helpful (and I'll get some up here) but can spur development be detected @ 3wks?