Often times when I take Bandit for walks or he's just out and about, people will inquire as to whether he's a boy dog or a girl dog. He was, after all, the runt of the litter of nine puppies. At the opposite end of the spectrum is Rufio, the pup who weighed the most at birth, and continues to well outweigh all eight of his siblings, currently tipping the scales at 38 pounds. And in looking at handsome Rufio, there's no question that he's an all-boy Aussie. I doubt Rufio's owners have anyone questioning his gender.
Rufio also gets to do manly, studly things that Aussies like to do ☺