Duck sex: to interfere, or to watch?
Ducks - like the Mallards Anas platyrhynchos shown here - lead fairly violent sex lives. As I said in a previous article... [A]s you'll know if you've spent any time watching ducks, 'forced extra-pair copulations' are very common in ducks. The Mallard Anas platyrhynchos is the best (or should that be worst?) example of the lot: females are handled so roughly by males (sometimes by groups of as many as 12) that it's quite common for people to speak of witnessing 'duc...
Source: scienceblogs.com