Was just wondering where the cat was when all of a sudden there was a hummingbird fluttering around the kitchen.  Followed by the cat.  The bird hit a wall and fell down, and I found him lying on his back on the countertop.  This saturday-morning cartoonish behavior did not bode well for the bird, I thought.  I scooped him up and let him go outside and he buzzed off.  The cat continued to be interested in the spot where I scooped him up.  Then he went through the stages of grieving "you just lost your hummingbird" -- denial (where did the bird go?), anger (that human stole my bird!), bargaining (if you get my bird back, I won't let it go inside), depression (my bird is gone!), acceptance (well, I can still stalk more, and there is a dish of kibble in the garage), etc.
This is the third hummingbird I've saved from cats, one literally from my cat's jaws.