I want to take a few eggs out of the nest and get her to lay more so she can hatch a bigger clutch, i will just slip the on si take out, back in when she decides to start sitting on them. She now has 7 of her own and 3 chicken eggs in there that i put in to convince her to lay. Is this a bad idea? How many ducklings can they take care of? And should i just leave her alone and let her decide how many? This a little over a year old mallard duck. Thanks in advance!