Are these all roos?

[naturemom]

I posted these pics yesterday in the What Breed is This? forum, and haven't gotten any replies, but I thought I'd post here too, because I'm starting to think all but one are cockerels! I think chip (the one that seems to be a RIR) is a girl, but I'm getting a bit worried about the rest. Of course it doesn't help that they are all different breeds, but is there any hope of a chick being a pullet when it has such a large, pink comb already at 3 weeks?
https://www.backyardchickens.com/forum/viewtopic.php?id=7234

 

[crazy4daisy]

I think Looby and Mr. Snuffles look like roosters but it's WAAAAY to early to be able to tell you that. You gotta be patient! I had to wait till my chicks were about 8 or 9 weeks old 'til I could say for sure.

 

[naturemom]

yea, I know it's too early. I'm just hoping I can figure them out before they outgrow their current brooder. We have to move before I can put them out in a coop. I'm only planning to keep 3-4 max, so I'm hoping that in the next few weeks I can decide which ones to keep and send the rest to their new home. Or I'll make a bigger brooder.