I just candled my eggs for the first time. I have 32 duck eggs and 3 goose eggs in the bator. I had real doubts as to the fertility of my duck eggs due to the inability of the male duck to mount correctly. I am only on day 4 but I can clearly see veins in 5 of the 32 duck eggs and not sure about the geese yet. Thicker shells and all. I am excited tho. I knew there was no way they would all hatch and hoped to get 4 or out of it.. Fingers crossed!!!!
