I know exactly what you mean, Chris. It seems hawks are especially wary of us humans. It may well be because they were hunted and killed for so many years by farmers protecting their chickens, sportsmen thinking that by eliminating birds of prey there would be more Quail, Pheasants, etc. It seems that humans have always been especially hard on predators!
By the way, I was searching for another thread when I found this one. Someone had a thread with a similar name, and there were several neat photos posted of birds looking at the birdwatcher. I couldn't find that thread, so I have one I took today I would like to post here of a Savannah Sparrow who looks like he thought he was hiding while watching me!
Thanks.
EDIT: Okay, this IS the thread I was looking for!!
We did not inherit Mother Earth from our ancestors...... we have borrowed Her from our descendants.
Chief Seattle (paraphrased)