Being so small you'd think they'd be timid but in fact the ones around my parents place were scrappy and quarrelsome with each other and completely unafraid of us or the dogs. One even drank out of the feeder in my hand as I was trying to hang it up.
Years ago my mom saw the neighbour's cat acting odd and then saw a stick coming out of its mouth. She went to help thinking that it had a twig caught in its teeth or throat or something. When she pried its mouth open a hummingbird flew out. What she had seen was the beak.