Hi there! This is my first time raising chicks, but I have a feeling that my almost 5-week old ameracauna pullet that I purchased from a feed store may actually be a He! She is about 1/3 larger than my other chicks and has shown some different behaviors, such S scratching at my hands when I reach into their brooder. Can any expert out there take a look? for a size comparison next to my barred rock of the same age.