What the bird… #3: Rock Pigeon
There is a saying in German “rather the sparrow in the hand than the pigeon on the roof top”. Meaning, that having something small is better than looking at/not having something big. I like pigeons and sparrows where they belong. Pigeons used to belong on rocks or in the woods. But streets and houses are like rocks and so the Rock Pigeon or Rock Dove came to stay. They also eat whatever is around. The more food the more offsprings and then there are suddenly too many pigeons and too much dirt.
More information: http://www.vogelwarte.ch/feral-pigeon.html