The birds \u002D mostly of the Corvidae type like magpies and crows \u002D have been spotted making such nests in Scotland, Holland and Belgium
The metal spikes are believed to give “structural support” to the nests, in some instances creating dome-like roofs, he said. They also come in handy for “nest defence,” Hiemstra added, to ward off predators and protect eggs, such that “the nest is like a fortress.” His study was published in Deinsea, an online journal of the Natural History Museum of Rotterdam.
Jim Reynolds, an assistant professor in ornithology and animal Conservation at the University of Birmingham who was not involved in the study, agrees that the materials being “repurposed” is an adaptation technique for birds “living and breeding in a city.” Anti-bird spikes are often laid out at railway stations, car parks or on roofs of buildings to prevent the animals from perching. Similarly hostile architecture is sometimes found in doorways and benches to stop humans from dwelling or sleeping on streets in cities around the world.Auke-Florian Hiemstra with a nest.
For U.S. architect Joyce Hwang, the birds’ adaptive behavior is “beautiful and pretty ironic,” she said.
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