Thanks for any replies.
I'll post a pic as soon as I can.
Without a picture it's really hard to say, so I do hope you can get one soon. lA little pink blushing - perhaps just about the edges - after, say, being extremely active (ie running about because someone has approached the brooder) is not the same thing as an obviously bright pink comb.
If the comb is consistently that pink (not just when you have caught it, given how skittish it is I am guessing it takes a bit of effort which *could* lead to some blushing) I'd be extremely surprised if it does not end up being a cockerel.