in the spring of this year i bought 2 khaki campbell ducklings from tractor supply. conveniently, they ended up being male and female. i had seen them mate before but i didnt know that the female was laying eggs because i couldnt tell them apart from my chicken eggs. at this time, i was attempting to hatch chicken eggs but i hadn't seen any activity in 2 months so i gave up. i didnt check my incubator for almost 2 weeks and when i finally decided to i came across 5 fertilized duck eggs!! since then, i have cleared out all the chicken eggs and added 7 more fertilized duck eggs. i now have 12 developing ducklings all at different stages of growth and i candle them once a day just to check them out. last night, i candled one of my eggs and saw what looked like the duckling trying to pip into the air sac, my assumption was correct and today when i got home i checked again to see the ducklings bill in the air sac. since this is the first time i have ever hatched duck eggs, i was wondering if anybody could give me information on how to care for them after they hatch or any tips for during the hatch. i read that it would hatch within the next 24-48 hours and that the duckling must be kept in the incubator for 24 hours after hatching but i want to make sure i dont do anything wrong that will end up hurting them. thank you so much!