what's up, duck?

For weeks now two ducks have called the courtyard of my building home. They don't really hide themselves but they're still antisocial. In fact, they sit very near the wooden lunch tables during the day, but only when they're empty. They curl up inside their chests and look as if they're ceramic.

But they come alive at night. They quack and quack and quack. I'm not complaining. I rather like the sound. It's really quite cute, but what isn't cute is when the drunkards rumble home in the wee hours of the morning and imitate the ducks, pestering them and those of us who aren't yet asleep.

What I don't understand is how the ducks can live here. There is no water. No pond or anything. Are the puddles enough for them? I guess so. And what do they eat? Do they depend on bread bits for sustenance?

I think I might miss them.