But a bird warning other birds that there is a snake in the grass does reveal a fact about the bird: that it is a good bird who will risk its life for the other birds, and therefore is helpful for the other birds to keep around, perhaps even with bribes.
But a bird warning other birds that there is a snake in the grass does reveal a fact about the bird: that it is a good bird who will risk its life for the other birds, and therefore is helpful for the other birds to keep around, perhaps even with bribes.