So there are these birds living in Terminal B of Logan Airport. I'm sure people throw them plenty of crumbs, or at least drop crumbs, so they're in good shape for food -- but I'd kind of vaguely wondered where they get their water.
This morning, while waiting for a delayed flight: An answer.
They get their water from the water fountain, just like the mammals. (I tried to get a better picture, but he flew back towards the big open area around Gate 6 and Gate 8, which is probably better crumb hunting.)