I have three and a half week old Delaware chicks playing in a pen in my computer room right now. Problem is, they didn't come with pink or blue leg bands. I can't tell which are male and which are female. I have been told that females have more feathering than males, and males have a bigger and redder crown that begins to form about this time. Males tend to run a bit larger and heavier than females. The problem is -- my kids aren't obeying those rules. The two with the most feathering are the two heaviest birds. Both were 9 ounces on their 21st (or 22nd) day birthday. They are mostly white, and they do tend to have slightly bigger combs than one of my other birds. A third bird is smaller (by an ounce) than the two I just mentioned, and she has almost no comb forming at all. She does not have quite as much feathering, I don't think, but I'm really not a good judge on stuff like that, and neither is my wife. This bird has more black color on its whitish body than the first two birds I mentioned. She was only 8 ounces on her 21st day. The fourth bird was a runt from the day I got it. It is now the same weight as the third bird, though. As late as age 17 or 18 days old, it was almost an ounce smaller than any of the other birds - including bird #3. But on its 21st day weigh-in, it had caught up to bird #3. This bird has the least amount of feathering of any of the four birds, and it has about the same amount of black on it as bird #3. However, it's comb is about the same size as birds #1 and 2, described above. I don't have the ability to post pictures. But is there somebody who can help me sort out who might be who in this group? Or does somebody have pictures of Delaware babies that they could post, so I might have some kind of idea what a little gentleman or a little lady should look like at three to four weeks old? Thanks in advance for your help.