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The engineering of birds’ nests
- dahart 7y ago> “We hypothesize that a bird nest might effectively be a disordered stick bomb, with just enough stored energy to keep it rigid,” I've had the pleasure of seeing a golden eagle's nest on a mountain top up close and personal, and it was absolutely stunning how meticulous and clean it was. It shocked me. It wasn't a stick bomb at all, it felt organized and roomy, the surfaces were flat, the ambiance was relaxing. The thing felt downright designed and engineered.
- tejtm 7y agoEver wonder where the big birds get their sticks? I had just assumed they picked them up the way we would. But a large bird on the ground wrestling with a stick is vulnerable to ground adapted things. I have seen them breaking significantly sized dead branches off the tops of trees with full diving attacks where the sticks never hit the ground.
- throwanem 7y agoA couple years back, I watched an osprey pull a three-foot length of steel wire out of a frayed cable on one of a tramp steamer's cranes. Osprey nests are wild. From the outside they look incredibly messy, and the wire wasn't an aberration; the birds make considerable use of human detritus in their engineering (cf. https://i.imgur.com/R2nO1Zu.jpg https://i.imgur.com/R2nO1Zu.jpg), and while I've never seen the inside of a nest due to how high up they build, I gather the end result is quite deep and spacious.
- mtm7 7y agoFascinating. I found a video where two eagles work together to arrange a new stick in their nest. (It takes place around 10:25.) They try multiple spots to see where it fits best. [0] And unrelated to birds, but hearing about how animals "design and engineer" their living spaces reminds me of the pufferfish, which creates beautiful geometric artwork in the sand as a mating ritual. The fish is only about 4 inches long, but the artwork is over 6 feet in diameter. Picture [1] and article [2]. [0]: https://www.youtube.com/watch?v=9KbtoO6CpQo https://www.youtube.com/watch?v=9KbtoO6CpQo [1]: https://pbs.twimg.com/media/C19XjjUUQAAuymb.jpg https://pbs.twimg.com/media/C19XjjUUQAAuymb.jpg [2]: https://en.wikipedia.org/wiki/Pufferfish_mating_ritual https://en.wikipedia.org/wiki/Pufferfish_mating_ritual
- TheSpiceIsLife 7y agoThe pufferfish thing is amazing, thank you for sharing this!
- mtm7 7y agoOf course. Amazing username by the way! :)
- TheSpiceIsLife 7y agoThere’s a couple Dune themed usernames getting around. Have you seen the latest episode of Star Trek: Picard?
- randycupertino 7y agoOn the opposite side of organized nests, I vote for Mourning Doves for the most haphazard, half-*ssed nestmakers. They're notorious for disheveled nests which barely stay together, in odd places: https://www.wild-bird-watching.com/images/dove-nest-on-hanging-ladder-21289825.jpg https://www.wild-bird-watching.com/images/dove-nest-on-hangi... https://www.wild-bird-watching.com/images/dove-nesting-on-ladder-21288859.jpg https://www.wild-bird-watching.com/images/dove-nesting-on-la... https://www.reddit.com/r/Ornithology/comments/6i7cwk/dove_laid_an_egg_on_a_clothes_horse_in_our/ https://www.reddit.com/r/Ornithology/comments/6i7cwk/dove_la... We had a pair in a planter box whose nest fell apart so often I ended up reinforcing it for them with some twine when they were away! They came back and had two more sets of babies in the same spot.
- bobobob420 7y agoWhy are articles behind paywalls allowed?
- stagas 7y agoThis[0] extension worked for me. [0]: https://github.com/iamadamdev/bypass-paywalls-chrome https://github.com/iamadamdev/bypass-paywalls-chrome
- whalesalad 7y agoNone of the images will load in the article. I am getting gnarly timeouts with the NYT CDN. Anyone else having trouble there?