The engineering of birds’ nests
nytimes.com
nytimes.com
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.
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.
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), 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.
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
Have you seen the latest episode of Star Trek: Picard?
https://www.wild-bird-watching.com/images/dove-nesting-on-la...
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.