I don't think Hawks normally bother other birds but I'd be a little nervous about it too. Guess it just depends on how hungry they are.
That snake looks awfully happy where he is..

I feel sorry for them, they do an enormous amount of good but everybody hates them. I see it all the time at work, people always want to kill them no matter what kind they are, they look at me like I'm nuts when I refuse. Kinda like spiders, I guess. Somebody has to love 'em.

I notice the same thing with my lizzards, people either love them or hate 'em.
Squirrels are a riot to watch, I used to raise orphaned small animals and birds for the vets in the area, and squirrels are just like kittens when they are little. So much charm in such a small package!