I think the "autralorp" is a hen, but its legs are the wrong color for australorps. The BLW I think you are right on the gender, but they look more like a columbian wyandotte. The unknown black bird with black legs is either a australorp or jersey giant. You should be able to determine the breed by looking at the color on the bottom of its feet. The pad on the lorps will be pinkish white and giants will be yellow. Hope this helps.