Crows and Magpies Snatch Anti-Bird Spikes to Build Their Nests

Crows and magpies in Europe have been observed repurposing anti-bird spikes, typically used to deter birds from roosting on buildings, as nesting material. This behavior was documented in a study published in the National History Museum Rotterdam's journal Deinsea. The birds remove the spikes and incorporate them into their nests, showcasing their intelligence and adaptability. While magpies use the spikes to protect their nests, crows may use them for structural support. However, there are potential drawbacks to this behavior, such as the spikes becoming too cold for chicks at night. This innovative use of artificial materials by birds is not unique, as evidence shows birds worldwide incorporating human-made items into their nests. Researchers suggest that these birds are demonstrating resourcefulness and adapting to urban environments. The study sheds light on the remarkable abilities of these avian species and their capacity to utilize unconventional materials for nest-building purposes.