This is
Weird, let's get that straight! It's baffled me, and I have a lifetimes experience.
I live in a tin over old thatched cottage. No access to the roof space.
I had a pine marten living up there, for years. Couple of months ago, I blocked her out.
Yesterday, a small bird got into a obsolete (barn) rats hole in the bottom of my back room door frame. (Don't ask!

) Said bird shortly got out. Then went back in! Obviously, I just opened the doors on either side of the room and closed them, an hour or so later. Fair to imagine the bird had sneaked out and flown away.
Today, I went into the back room and was hit by that Wall of stench we all know so well! Something rotten as heck! But, in a room I go in, many, many times, every day?! It's my work room. I was in there
most of yesterday. Nuffn!
I dunno, guys. I'm completely at a loss here. Sparrow sized bird simply cannot die, decompose, and chuck out That level of stink. Not in twelve hours in an unheated home.
I let my Dogs in there. Every one of them is indicating it's up above. None looked at the rats hole.
Here's some crazy conjecture: What if the pine marten has another way into that roof? What if the presence of the bird drew her attention? Would she, possibly, then take it out on some randomly long dead rat, opening it and letting the gasses out? (Lawd! It's permeated my lips and my beard! Getting it as I type!)
Kicker is though; I keep a pet small bird in another room. The room directly below where she nested. She's
been in that room. Never went after my bird.
I'm baffled. Anyone like to take a stab, please? What am I missing here?
Thanks.