A 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

A 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.