Environmental activists bent on stopping logging are using tree spikes made of concrete to evade detection and create a deadly hazard in some British Columbia forests. The concrete plugs are meant to ...

Biologist Auke-Florian Hiemstra says the birds seem to be using the spikes as humans intended them - to keep pests away In cities around the world, anti-bird spikes are used to protect statues and ...

Spikes placed on buildings to deter birds are being used by birds to build nests in several locations around Europe. “It sounds like a joke,” says Auke-Florian Hiemstra at the Naturalis Biodiversity ...