The bird-pooh spider!

The exact ID and species of this spider has yet to be agreed on by arachnaphobes and any other taxonomists who are "splitters" rather than "lumpers". For our purposes this is called the bird-dropping spider, or bird-poop spider, because....oh, go on, figure that one out yourself.

I am lucky enough to live near a place where I can find these quite regularly, after a bit of careful looking, so I have returned a few times.

OK, this is a spider that looks like a bird's dropping and this apparently helps to confuse its predators, as it will retract its legs under its body and play dead, making its mimicry even more convincing.