#4 That is, it is unlikely that it will be possible to find a bird on a single body of water, whose banks are bare.
#5 They easily accept almost any treat from people, and easily make contact.
If we talk about breeding ducks, then the important point here is that ducks, as a rule, get used to people in a very short time, and therefore they can often be seen on any body of water in the city.
#6 Ducks are considered migratory birds, so they migrate directly for food.
When it gets cold outside, it becomes difficult to get food and then the ducks fly south.
In the spring, they always come back. By the way, an interesting point is that ducks, which live in southern latitudes on a permanent basis, do not always stay in places either, and necessarily migrate to escape from heat and drought.