4 week old chicks. Was told there are 2 Cochins (black) and 2 Araucanas. Can anyone confirm this and

[cmw226]

I have been trying to get good looks at the 2 EE's. The black and white one (Freckles) has a bigger and redder comb and bigger legs than the other one (Goldie). I have not yet been able to identify any pointy feathers, but they don't like to be held so it is hard to tell for sure with their color patterns and not being able to lift their feathers. I keep trying though. I can't have 2 or 3 roos since I only have 7 maybe 8 pullets. So I really want to know for sure if they are truly roos.