It looks like a cockerel to me! I see the streamers on the head, and the posture is looking pretty upright! That chest is puffed out! Females usually walk more horizontally. I'll try to get a picture of mine for reference
Okay here is my 4 m/o silkie Becky! See how she isn't as upright? And her feathers on her head are rounded out with no streamers! Also watch to see if a comb and wattles form... females don't have them!