Hello. We recently bought four chicks at the feed store. We think the largest is an Ameracauna. Also we are not sure what gender any of the chicks are. Please state your reasons why you think it is a rooster or hen. We like to buy chicks every now and then and try to guess their breed and if they are a rooster or a hen based on how they act and how their feathers are but these ones are really hard to tell. The Ameracauna and Golden Sebright are really into the pecking order and the other don't really care. Thank you for your help.