It is always difficult for me to accept that the living world constantly needs our intervention, as if the whole of adaptive evolution never took place - including dramatic catastrophes. Rupert Sheldrake once claimed that some small birds learned to attack products delivered by the milkman- clearly within historical times. I once set up bird feeders and soon found a hummingbird come by, as if to ask, "where's my feeder?" ( I then put one up for nectar feeders)
Tall towers and windmills are a hazard to birds ( they hit the guy wires, too). OTOH, these can offer a wonderful and productive perch for many birds. A tower can be a 1000 or more feet high with no branches to obstruct the view. If a bird is wise enough to avoid the hazards, it might enjoy the convenient view of distant prey.
