Seems to be the epidemic of crows. Luckily I had some food surplus and could take it. Go-away price was 120K+
It is dangerous to leave the whack to do it's dirty work. I had finally reached the green on bliss (thank you all for that), +180 or something. In the morning I found -20K+ waiting for my attention.
I had an idea. In case of heavy bliss-deficit, doesn't it make sense to level up? If I understand correctly, pop will be added to bliss.