What The??????

If it's not one thing, it's another.
On our last mo-ho outing,
we discovered something has
chewed on the air return vents
in the ceiling!

Apparently, something must have
gotten in the rooftop units,
and into the cold air returns.

Could it have been a mouse?
Don't think so.
A mouse could have easily slipped
between the plastic blades.
A squirrel?
The shaft is only about 2 inches high.
So, maybe a chipmunk?
They do like to chew.

There are six 4 inch plastic vents. It chewed on the 4 middle ones

There was white granular stuff on the floor. But no other signs
of anything in the motor home. So I assume it left the way it came.
Craig was concerned it might be dead in the shaft, so I took my camera,
pulled off all the vent covers, and took pics of the entire shaft. Nothing! Which was good. So next, we get on the roof and remove the air conditioner shrouds to see where it got in and fix it. But we could find nothing! No way could something have gotten in thru the roof top units. they are completely sealed. So.........how did it get in to the air returns, and where did it go?
We replaced the vents and guess we'll just wait and see.