Wild ducks almost never quack unless it's mating season. Contrary to what you might think, they don't do it to attract a mate. They do it to try and attract predators to a particular area. If no predators show up, the ducks will nest in that area. If predators do show up, the ducks will fly off and look for another spot.
Boru
Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson