?? nest in window vent.

Korkyb

Hi all

I was clambering up on a ladder yesterday painting window frames in my house & spotted this construction in one of the higher window vents.

There doesn't seem to be any signs of life.

A/ What is it?
B/ What (if anything) should I do about it?

Thanks for any advice   

Devongardener

Intrigued so I search with Google lens and it seems it could be Annulohypoxylon Bovei fungus but it seems very symmetrical for a fungus!

FreeBear

Devongardener said:

Intrigued so I search with Google lens and it seems it could be Annulohypoxylon Bovei fungus but it seems very symmetrical for a fungus!

Or is it an open cell foam intended to reduce noise and perhaps filter incoming air ?

Albermarle

FreeBear said:

Devongardener said:

Intrigued so I search with Google lens and it seems it could be Annulohypoxylon Bovei fungus but it seems very symmetrical for a fungus!

Or is it an open cell foam intended to reduce noise and perhaps filter incoming air ?

The fact that it seems to fit exactly in the space, would back up your theory.

greyteam1959

Could be a used bee nest ??

chrisw

FreeBear said:

Devongardener said:

Intrigued so I search with Google lens and it seems it could be Annulohypoxylon Bovei fungus but it seems very symmetrical for a fungus!

Or is it an open cell foam intended to reduce noise and perhaps filter incoming air ?

I agree, and to stop insects getting in.

Korkyb

chrisw said:

FreeBear said:

Devongardener said:

Intrigued so I search with Google lens and it seems it could be Annulohypoxylon Bovei fungus but it seems very symmetrical for a fungus!

Or is it an open cell foam intended to reduce noise and perhaps filter incoming air ?

I agree, and to stop insects getting in.

The previous owner had a thing about spiders so that may be the answer