I have observed crows doing this with chestnuts on a crossing. And also a crow burying a chestnut, noticing that it was observed by another crow, then pretendin

I have observed crows doing this with chestnuts on a crossing. And also a crow burying a chestnut, noticing that it was observed by another crow, then pretending that it buried the nut in another spot and vigorously defending the fake location from the other crow.