Welcome to Backyard Chickens! We are glad you joined the flock! BYC is a helpful site providing all the information you need to know about poultry! There is always space for more members on the BYC roost! What breed of chickens do you have? If you are unsure about the breed or gender of any of the chickens in your flock then you are more than welcome to post here. https://www.backyardchickens.com/forums/what-breed-or-gender-is-this.15/ Hope you enjoy it here as much as we all do!
I'm sure you'll find that keeping chickens is so rewarding in so many ways. Are you in a place that allows roosters? If you're not certain of their gender, @alexa009 just left you a link to post some photos there. Also, here's a few interesting articles that may help keep you on the right track: