What kind of chicken it this

[hunterblu123]

They are 4 weeks old and I don't know what kind they are. And I think they are roo's but not sure. I also have some chicken's with greenish legs, one is white and the others are barred rocks. Do leg color mean anything? like egg color?

http://i110.photobucket.com/albums/n118/millstonekennel/070.jpg
http://i110.photobucket.com/albums/n118/millstonekennel/075.jpg
http://i110.photobucket.com/albums/n118/millstonekennel/073.jpg
http://i110.photobucket.com/albums/n118/millstonekennel/072-1.jpg
http://i110.photobucket.com/albums/n118/millstonekennel/071.jpg

Thanks
Alicia