It looks like it came from some form of pest, but there are no obvious holes or material above it. It's between glass and a screen with no obvious openings or holes. None of my other windows have it. We did have the house re-insulated recently, but I don't think it looked like this. Any help identifying what's going on?

I'm geographically located in Northern NJ I'm the US in the suburbs.

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[–] 1 point 1 year ago

Opps sorry for late reply.

Yah if its foam then something is digging it out.

Those piles look like what ants pile up outside their nest, and I have seen fire ants do this several times in the past. Hope you figure it out!

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