When I first started tracking this little bird, I saw a tiny flash of yellow and black and thought it might be winter goldfinch. The body and wings are somewhat similar to a goldfinch, but the kinglet has a super cool yellow mohawk!
And as if that wasn't cute enough, he also has giant yellow feet.
This little guy was quite the acrobat, flitting around through vines and branches, sometimes even flipping over in a complete circle or hanging upside down for a second.
When kinglets are alarmed, their crest will stand up and show a little streak of red in the middle. I didn't quite catch all the red in the photo above, but just a moment before, he had chased another kinglet off the same branch.