So I give up trying to sex these birds. I swear this was a boy! She (I seriously can't believe it) has been sitting for two days now. I know I have a male in the group because the eggs have all been fertilized. She is determined so far, can't get her to budge and she started ticking at me when I put food and water in front of her. I need to see how many eggs are under her, but she's pretty scary for something so tiny!