agree the 2 is a roo the 3 is a hen the first one is kind of tricky i would pass on it only because you are not allowed to have a roo but then again i have a frizzle who had a comb like that and she is laying eggs now
I would agree with others, the second one is a cockerel, no doubt, the first one is most likely a cockerel but not 100% certain.....I would definitely not buy it if you cannot keep a rooster .... and the third is a pullet, but buying, quarantining and then ntroducing a single bird into an existing flock is not a great idea, so I would pass on them and look elsewhere for your frizzles.