Duck droppings are harmful if allowed to dry and harbor a mould that when ingested will cause long term illness. Mainly small children are at risk. The droppings in the pool will be sanitised by the pool chlorine however I would like to see the level of chlorine sanitiser at around 5ppm to be sure.
Also make sure to clean the filter often.
No.
The population of mallard ducks in Louisiana is estimated to be around 1.2 million.
Same as the male, orange.
Mallard ducks are not capable of changing gender. There is no known species of duck that is capable of that.
Mallard ducks were never introduced. Mallards were the first duck ever on planet Earth.
Yes.
yes they do
from an egg
Yes, South Carolina has mallard ducks. These ducks can be found in almost any area with mild temperatures across Asia, Europe, and America.
Predators of mallard ducks include foxes, raccoons, birds of prey (like hawks and owls), and larger carnivorous mammals such as coyotes. Additionally, domestic cats and dogs can also pose a threat to mallard ducks.
If the result you want is a mallard, yes. If mallards can just breed with other ducks, yes, a mallard duck can breed other breed ducks.
No.