Cover Characteristics: Book Covers featuring Birds

I don't really have any sort of special affinity for birds, but I've noticed they seem to be on A LOT of book covers. So here we are! I've got birds that are featured prominently, birds in the background, single birds, flocks of birds, detailed birds, silhouetted birds... ok now this just sounds like a sales pitch. Anyway, here are the...
 

Cover Characteristics: Book Covers featuring People Holding Fire in Their Hands

Everybody get excited because it's time for another strange and highly specific topic! If you recall, I did a post about people holding glowy magic in their hands a few weeks ago, but, while I was looking for those covers, I also came across quite a few covers with people holding fire. Since fire isn't quite the same as magic, I decided to make it a separate post (plus the collages totally look...