Looks like we've got some hummingbirds nesting in our tree now - there's a little one that likes to hover and peek into the windows on the second floor. I find it cute, but my cat, ever the bully, is going nuts that she can't go outside and catch it. She's the same way for the dragonflies and butterflies that have started popping up in the garden now. She just parks her little self by the window, glowering at the animals outside. If I could find her leash and a harness that fits her, I'd take her out for some walkies. But all the cat toys, massive cat trees and playtimes aren't enough to satisfy her bloodthirst.
But she was an outdoor cat once, so I guess her yearning for blood comes with the territory.