Yea...I admit it's a pernicious habit..Lord knows how much of my valuable time I've frittered away watchin' birds and other wild critters when I could have been doin' something useful like hangin' around in bars or shootin' pool... another example of my misspent youth..
I've observed female mockingbirds lying still on the ground for fairly long periods of time following copulation..after a while they get up and fly away....that's quite possibly what's going on here...
It looks to me that the surviving bird is a baby that is trying to get its dead parent to feed it. The wide open "feed me!" mouth can only be accomplished by baby birds because of the elongated fleshy joint which connects the upper and lower parts of the beak. This makes it easier for the parent to feed it. As the bird matures, this joint shrinks so that adult birds cannot open their mouths this far. Baby birds depend on their parents to feed them long after they leave the nest. Hopefully this youngster had a surviving parent to feed him until he learned to find his own food.
The coloration clearly shows that the bird on the ground in the second-to-last picture is the living bird of the first picture, being attacked by a third bird. The narrative aspect is pretty much disrupted if you keep that in mind. Cool shots, but yeah, the anthropomorphizing is kind of silly. Emotions didn't bring the dead bird back to life.