Help needed please, hens or roosters? Breed?

[red45]

Complete beginner with two 4 week old chicks. Any ideas as to breed and gender please?

 

[Mahonri]

Australorp or Barred Rock (possibly pullet) and Leghorn Roo.

 

[Goose and Fig]

MMmmmmm- didn't we all answer these yesterday?

Like this one:
https://www.backyardchickens.com/forum/viewtopic.php?id=253202

How many user names do you have?

 

[jools8]

I'm new to website, thought my other pics disappeared, and had to create new user name to log in again. It looks like I have two names now. Thanks for replies and sorry for any confusion!!