THE 2-MINUTE RULE FOR HOW MANY EGGS DO SWANS LAY

I am no skilled on swans. I rather think that a night-time predator filched the eggs. I have read individuals express that their birds( chickens, geese, regardless of what) remove infertile or nonviable eggs from their nest. In 40 many years I haven't experienced a hen take away their own individual egg/s from the nest besides accidentally. Eggs l