M; Why do you know swallows make nests under the roof of stations?
F; Yeah….I saw them where people often come and go through. Public toilets in the park I saw some. They like to be protected by enemies.
M; Do you like seeing them?
F; Of course I do. But it seems having problems.
M; That’s right. Some are removed because of dirty mute.
F; It’s very annoying….I understand.
M; The bird research are giving mute catcher each facilities to solve the problems.
F; Yeah…it’s a good idea.