Grass cocoon in window screen track

Joanna Green
by Joanna Green
we started to wash our windows and found this cocoon type grass in the screen track. One had several dead green moths wadded in it but no other insect could be found anywhere. One other strange thing is it is always the right side of the windows. Can anyone tell us what it is?
  2 answers
  • KMS Woodworks KMS Woodworks on Oct 10, 2013
    Spiders? can you post a pic?
  • Joanna Green Joanna Green on Oct 10, 2013
    @KMS Woodworks. I really don't think it is a spider but we have no idea what it could be. It is bunch of grass cocooned in the track of the window screen. My husband noticed it when he started to wash a window and found it in all of the windows, just on the right side. He vacuumed them so I am unable to post pic. It is most puzzling thing we have run across. By the way, it has been in 8 out of 9 windows and only on right side in all of them. Thanks for responding!