Story Details

  • Magpies and Crows Are Using "Anti-Bird Spikes" to Make Their Nests (2023)

    Posted: 2025-03-10 14:33:10

    Ironically, birds like magpies and crows are using anti-bird spikes, intended to deter them from nesting, as nesting material. These intelligent corvids incorporate the sharp spikes into their nests, potentially providing extra protection against predators or strengthening the nest structure. While the spikes may deter some smaller birds, they've inadvertently provided resourceful corvids with a readily available and robust building material, highlighting the adaptability and ingenuity of these species.

    Summary of Comments ( 24 )
    https://news.ycombinator.com/item?id=43321109

    HN commenters generally found the magpies' adaptation of anti-bird spikes for nest-building amusing and a testament to their intelligence. Some pointed out the irony of humans trying to outsmart nature, only to have nature adapt and use the "defense" to its advantage. A few noted the sturdiness and readily available nature of the spikes as ideal nest-building material, comparing it to humans repurposing materials. Others expressed concern that the spikes could injure the birds or their young, while some dismissed this concern based on the birds' apparent ability to navigate the spikes safely. The potential for increased nest security due to the spikes was also mentioned. Finally, some commenters shared similar anecdotal observations of birds using human-made materials in unexpected ways for nest construction.