I suppose the access to your place is also easy for her and animals sense when they are welcome. Open gates, open doors, probably no fences. Here in the city we have to live behind locked iron doors. I live my cell phone usually at home, because in my quarters they get stolen at every time of the day.
I never saw a deer munching apples but then I never saw a deer outside the zoo. Apples sometimes are very big and their mouths are not so big. You told me there was something wrong with her teeth. Maybe, if you slice the apples a bit before offering she will appreciate it.
The birds have probably had bad experiences with other animals and maybe even from humans. So the general rule probably is: Avoid anything bigger than you that comes in your direction.
But living among animals must be paradise. It probably keeps you more serene