The default background image for this theme involves hummingbirds.
Do you like hummingbirds? They are fascinating, aren't they?
When I lived in Berkeley I used to take Sunday hikes up into the parks east of the hills.
Sometimes I went up through Strawberry Canyon, which is the area behind UC Berkeley where the botanical gardens are. In the summer I would sometimes see hummingbirds there doing their "mating dance." I don't really know if it was for mating. But it was really something. They would swoop up and down past each other in deep arcs, descending rapidly from quite high in the air, swooping past each other near the ground, then flying back up quite high. And they made the damnedest noises while doing this.