Update: they were all fertile! all of the eggs I set in the incubator have developed into little veiny blobs so far! hopefully they'll keep growing! Thanks everyone for the help!
Both the boy and girl are about 8 months old! But looking at that picture, the white dot on my duck's eggs is as big as the fertile egg, but I can't tell if there is a bulls-eye or not! I've attached some pics from todays egg! sorry for the low quality, yolks are surprisingly SO HARD to...
Hi! So I put my eggs in the incubator under the assumption they were fertile, as I had seen some white spots on the yolks a few times. BUT I just realized that those white spots don't have rings on them so the eggs are infertile (most likely).
I have one drake and one duck, and he *mounts* her...