Day 3 of the Hunt for the Inonotus obliquus fruiting body.

Went back to Grafton and looked at the fallen Yellow Birch again.  Did not see anything new so I again looked at that triangular shaped polypore.  Then I checked the surface below where it was attached.  It was dark brown and soft to the touch.  I took a close-up picture of that surface.

Near the top of the picture it looks like open pores and sides of tubes.  It was about 2 to 3 mm thick.  It looked dead, last years.  The hunt goes on for the living version.