Polish, Hen or Rooster?

[CaramelKittey]

Hi!
A while back, I got two polish chickens, supposedly a hen and rooster pair. Unfortunately, due to unknown reasons one of them passed away however, we do not know if it was the hen or rooster because they looked very similar, with the rooster having a slightly bigger crest/afro. Many of you suggested coccidiosis, I used Corid for just one day and have had no problems since. Not sure if it was coccidiosis, if it was, I should've treated longer than one day. Anyway, no loses since, and I'm really not sure which one is still living. Here are some pictures.

He/She is a White Crested Black Polish to my knowledge. If anybody knows if it is a cockerel or pullet it was be SUPER helpful! And any name ideas are welcome as well! Thanks in advance!

 

[BaaKaaawk]

Looks like my girls.

 

[slordaz]

not to sure, but the girls crests are usually more close and the cockerels look like they had a wild party the night before, this why my friends grand daughter calls em punk rockers lol

 

[Yorkshire Coop]

Looks like a female to me. The crest doesn’t look too wild. How old and I guess it’s not crowing?

 

[CaramelKittey]

Looks like a female to me. The crest doesn’t look too wild. How old and I guess it’s not crowing?

Hi! I have not heard any crows yet. He/She is 10.8 weeks old.