By the way, when there are crows around, do not stare or point at other birds' nests if you spot any among the tree branches. Crows are very good at reading hum

By the way, when there are crows around, do not stare or point at other birds' nests if you spot any among the tree branches. Crows are very good at reading human gestures. If they see a bunch of humans staring and pointing at something, they will understand that there is something of interest in that direction, and will inevitably find and destroy the nests.