At this point, I have a policy to work only with spirits of animals or other non-human spirits. Because even when I use my lorica--meaning I know they are at least not bad spirits--I always get this stuffy over crowded feeling whenever I try and work with people spirits so no dead relatives for me sadly.
Bird spirits? Excellent and channeling, and for me at least way easier to get that feeling of flying then astral projection. Only achieved real AP once and really as long as I keep the bird feeder full and offer them a treat after I can do that whenever I have a few hours completely to myself.
Also, whenever I need help from the spirit realm I talk to my friend Cheana. I really don't know who or what she is just that she's a spirit and she is quite clearly one that's never been human. And also not a bird, I'd know if she was a bird.