i have two ducks make and female that are very tiny and black. judging by what ive seen, theyd probably be anle to fly but i think have pinioned wings. one is male but has mo drake feather. i know because it cannot loudly quack and only sounds like a cough when it talks. it does not lay eggs and is very very small. the female usually laid at least one egg every day until i believe september!!! many days, she would lay two!!!!! the eggs are not black or even dark at all and are about the size of a bantam egg to a small chicken egg. we've been seeing ducks that look exactly like them on our pomd that are aldo tiny and fly VERY well!!!