You'll probably need to download to look at it properly.
This is just kinda how I think it would work (shhh people who want to say "But its not possibleeeee"
I'm drinking Rum-Redbull and its not meant to be a biology report, its fantasy/sci-fi).
Where the wings are on backs always annoys me and how it would work also annoys me too because skeletons are weird. I like drawing bones and wings. But I get irritated when it makes no sense.
This will be updated soon and broken down into Bones, Muscles and Feathers.Edit:
You may have noticed it has changed. That will be because I have been doing a lot of studying, research and talking to actual doctors and physiotherapists who understand anatomy and asking for their opinions. Also done one for the muscles and wings themselves which i'll have up soon.
Bones, Anatomy Ref from www.biodigitalhuman.com/
, medical books, doctors, various sources of photos and ornithological books and diagrams.