It's called a "Ruby-crowned Kinglet", so where's that ruby crown?
This perpetual motion machine of a bird is hard to capture a good view of, let alone capture an image of. And even when you can, seldom does any sign of a ruby crown show up. We see the black cap on the chickadee and the blue on the jay. Even the kinglet cousin, the Golden-crowned Kinglet flaunts a namesake crown of gold.
Well, only the male has a ruby crown to begin with, and yes, it it usually concealed. But every once in a while you luck out and catch a glance of a male kinglet that is riled up, perhaps by a predator or another kinglet. That excitement raises the crown feathers and you'll get a look at a teeny tiny patch of red on the top of his head. This, my friends, is the elusive ruby crown!
You see, the kinglet is a modest little bird, not about to flaunt his royalness by showing his ruby crown to just anyone!