Intelligent bird. Some stupid human will come to look at what it has, it flies off, the weight of its body off the grenade will dislodge the spoon and bye bye human.
As long as he stays perfectly still nothing will happen. The spoon is what triggers the detonator. When that releases from the grenade, you got 5 ish seconds. Theoretically you could shove a grenade into a beer can, remove the pin and it would be fine. Makes a nice conversation peice. Don't ask!
Assuming it is heavy enough to be in that situation, and that it stays balanced like that, it could stay there as long as it felt like it. The pin only holds the spoon. The spoon releasing triggers the fuse.
Comments
takes flight with weight and pin, leaving you in woe!
We all might need to know this stuff too soon. ❤️