Is swan able to separate water from milk and drink only milk?

The claim that swans can separate water from milk and drink only the milk is a misconception. Swans do not possess any unique ability to separate liquids in this manner.

Is it common for an adult Robin to help feed the another bird species babies because there is one feeding 5 baby Bluebirds in nesting box near house?
Will Canadian geese move the nest once eggs are laid?