"Zeroing In" (Ruby-crowned Kinglet)

I'm not sure what's worse for a small insect or other invertebrate- the hyperactive and wing-flicking style of the Ruby-crowned Kinglet, the hyperactive and acrobatic style of the Golden-crowned Kinglet, or the hyperactive and tail-flicking style of the gnatcatcher. A synonym for each one is complete and utter domination, anyway, so I guess it doesn't really matter. Right? Right.

Done