Last year as I got out my car at while working one day I heard a huge raucous from 20-30 crows in the trees and on the wires. I followed their attention point and saw that one was flopping around on the road, apparently hit by a car. I went over to get it out of the street and check it out- it was obviously not going to make it, and died within another minute. I was amazed by the flocks apparent "concern".
Then, a couple days ago I got out of my car and heard the same racket from a bunch of crows. I immediately began looking for a hawk in a tree nearby (that's usually what's up). But then I noticed they weren't actually dive bombing anything- just flying around very excitedly nearby. I looked down on the ground and there it was, flopping a bit on the road, not moving too much though. I went over to it expecting to carefully shoo it up in the grass off the road, but it didn't move away. So, I picked it up and took it to a nearby bush and set it on a limb. It could barely hang on. Indeed, by the time I got back in my car it had fallen to the ground (only about a foot). I watched it for a minute or so and thought it seemed to getting better quickly. Then I looked up above at all the other crows and saw the problem. There was an overheard walkway between buildings with a super mirror like coating with trees clearly reflecting back to me. It must have hit the windows! Now I looked back at him and he was actually standing instead of squatting and holding its head up high looking around. I had to leave (working) then but I'm pretty sure he recovered and flew away. I was back there about 3 hours later and could not find it so I hope so.
Don't know if that was "emotion" demonstrated by his buddies, but definitely they reacted to its trauma. I thought it was pretty cool in both cases.

