Gavin,
Just curious, and not that I would ever even think to test or risk anything, but do you have data or experience regarding buman disturbance and failed nesting for condors / peregrines?
I'm sure each species tollerates diffetent parameters.
Just curious if you have any data like "Climbers got [X] feet away, or were [Y] pitches below a nest and parents abandoned it."
I'm sure plastic ingestion has reared its ugly head once or twice...
Like I say, if you say stay away, I say yay okay.