I never knew either about such a word for such a thing as this sight captured on camera: a crow sitting quite still, letting an undisciplined parade of ants crawl up and down its feathers and all over its body. Audubon supposedly observed it in turkeys as early as the 1830s— No one knows for sure if in symbiosis, or if the birds were simply tolerating the insect picnic in order to have a ready supply of snacks on hand. In one picture there's a crow in an almost Sphinx- like pose; in another, a crow bends over like a dark tent in some desert, not knowng if the arrival of these tiny nomads is a blessing or a curse.