Swallow song

Down at the mission
On a class field trip
My mom packed me candy
The swallows are landing
I stand in their shadows
As they move above me

Where do they come from?

I drive to my old house
There's someone else there now
Curtains in the windows
There's where you kissed slow
Grandma's made dinner
Let's eat it downstairs
There's boxes of candy
The hills are still standing

Once there was nothing

Why do I come back here?
Year after year.