Birds of Prey in particular like to perch on power poles.
Photo credit to Sean P. Twomey
The power pole, with its height, flat top, wood or metal cross-arm, and other architecture, offers a prominent perch for feeding on, hunting and/or viewing from, a resting place for drying feathers, preening, feeding, digesting, taking time. Where few if any alternatives exist, or simply because of their location, one or more poles can they become a very attractive proposition indeed - so chosen as a preferred perch or simply sought out in a needs-must situation (like for the Osprey Jimmy).
Tragically certain structures and configurations can be deadly, with the probability of a lethal outcome increasing when other risk factors stack up.