A team of Dutch researchers has discovered that magpies and crows are using metal spikes designed to keep them away from certain urban areas to reinforce their own nests and keep intruders at bay.
Scientists have known for a while that magpies and crows are some of the most intelligent birds in the world, but even they were baffled by their amazing ability to adapt to hostile urban environments. It’s not unusual for birds to use human trash and debris as tools and building materials for their nests, button see them use the very things we humans use against them was nothing short of baffling for researchers at the Natural History Museum in Rotterdam and the Naturalis Biodiversity Center in Leiden, in the Netherlands.
