|Petroglyph, zoomed in.|
Since the nests are in ideal locations, maybe the eagles have raised young there since the time the petroglyphs were carved, and perhaps the petroglyphs were marking the spots as special or sacred. It's interesting to speculate.
The above petroglyphs were not near a nest. Man chasing deer, with extra large human footprint? That's my best guess. What do you think? The figure above and to the left looks a little like a jackrabbit to me.