Why do chickens lay eggs during the day? Ducks lay eggs at night?

Chickens have to sleep at night and have no time to lay eggs; Ducks have to swim during the day, so they can't put their eggs in the water. ^_^^_^

This may be mainly the result of training. Let's talk about ducks-

When releasing ducks in the morning, duck farmers always look at the ducks that should lay eggs to see if they are finished. If you suspect a duck is lazy, catch it and touch the egg bag behind your ass. Is the hard part still there? If you catch the one in the sky, keep it in the nest and let it "go out of the city" until it finishes what it should do.