I duck with multiple nests....help!

[Edye0320]

Hi All. I’m at a loss, please help! I have a mallard who laid 20 eggs and only 1 hatched (was her first clutch). I took away all the eggs and turns out none of the others were fertile. 1 month goes by and I find another nest with 2 eggs in it, she continues to lay 1 a day up to 10 eggs...never sat on it. This was end of last week. I assumed she was still laying, since she wasn’t sitting, so yesterday I checked her house for the number of eggs in the nest. Still 10 in that nest BUT I find another nest on opposite side of house with 5 eggs in it (which for sure wasnt there before). What the heck!? What do I do? Try to incubate the 10? See if she keeps laying on the new nest? What is happening. I’ve never heard of this type of behavior. Advice welcomed!!! (Yes, she is the only female duck, along with her now 1 1/2 month old duckling)

 

[EverythingDucks]

I would candle the eggs to see if they're fertile and mark of of them. I would try to incubate the fertile ones if the Mallard isn't sitting on them so the duckling can have some siblings. I've never had eggs but I would try that