I think it's less subjective and more functional--a woman riding a bike in Dutch year or two ago was attacked when she got too close to a nest.  Opened up her scalp.  Went up to the clinic and was stitched up.  On her way down the hill the eagles attacked her AGAIN, and she had to go back to the clinic for more stitches.  Eagles apparently hadn't gotten over it yet.

I try not to attribute human motivations when the species involved ain't human.  And you should be grateful, James.  Were your original supposition about eagles correct, you probably couldn't leave your house.