The epic story of whether my mallard is a male or female has been on-going since I got her/him... This is Harvey, originally thought to be a boy, only to be changed to a girl once her feathers came in. She is 15 weeks old now, and I really need to be close to 100% positive on gender because I'm about to get 2 more ducklings. She has not laid eggs at all, has not really quacked except for a very quiet semi-quack when she thinks I'm chasing her, and she has started to molt and get some darker brown feathers on her chest. Can anyone help me figure out what she (or maybe really he) is? I'll post some pics, let me know if I need to put more up! Thank you! Any help is greatly appreciated!