The usual. South for the Winter . Stay in wetland areas in the Temperate Zones.
Sept Thru Dec
sept 20th-october15th
No.
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.
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.
from an egg
Yes.
yes they do
Foxes, and raccoons eat young mallard ducks. Snapping turtles will also eat them. Mallard duck eggs are eaten by snakes, and crows.
A box of quackers
Yes, South Carolina has mallard ducks. These ducks can be found in almost any area with mild temperatures across Asia, Europe, and America.
it will probably eliminate some of their food supply, they will probably migrate to another pond.
a drake or mallard