F/11.0, 1/500, ISO 320.
Ruby-crowned Kinglet
What is the difference between a school teacher and a train?
The teacher says spit your gum out and the train says “chew chew chew”.
Interesting Fact: Ruby-crowned Kinglets seem nervous as they flit through the foliage, flicking their wings nearly constantly. Keeping an eye out for this habit can be a useful aid to identifying kinglets. ( https://www.allaboutbirds.org/guide/Ruby-crowned_Kinglet/lifehistory )