Look for long tail feather and pointed feathers on the body, another feature is the comb (The red thing on the head) Usually with males it progresses a lot faster and is bright red. Males also have a little bumps on the inside of both their legs. (Maybe the outside) They are also a lot larger....
You cant really go by the little bumps on the legs. These are called spurs and both roosters and hens can get these.
How old are your chickens? It is hard to guess gender without an age. They all look like pullets so far except for the chick in the 2nd pic, it looks a little rooish to me. I could be wrong. But without an age it is really hard to tell.
Quote:
Okay cause I don't know much about the others but I know quite a bit about SL and GL Wyandottes.
Both Wyandottes look like girls to me.
Good Luck!
This is my SLW roo at about 4 or 5 weeks old. He took a lot longer to feather out than my hens. He also has really big feet!
Here he is again at about 17/18 weeks. It might help you get a bit of an idea of what they will start to look like if they are roosters.