They most likely need a bigger water tub. Pekins are bigger ducks. A kiddie pool worked for mine. Now they have a big 150 gallon tub we buried in the ground. I hatched pekin ducklings under the mom up until they start pushing out of the shell and take them inside under a lamp with a temp gauge reading at 99 or so and keep the shell damp until they are out.
This one decided she was coming out on our truck ride to the house from a old property we were moving from she was very spunky after she dried and fluffed up.
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