White-throated Sparrow, Louisville, Kentucky, 10/11/2020.
Visits my area only in the winter. The White-throated Sparrow species has 4 sexes, male/female with white strips on the head, and male/female with tan stripes on the head. This individual appears to be of the tan-striped variety. They can only mate with the opposite colored stripes.
Interesting article about it here: https://www.nature.com/news/the-sparrow-with-four-sexes-1.21018
Female Red-bellied Woodpecker, Louisville, Kentucky, 10/11/2020.
You can't see the red belly in this photo because it's behind the tree branch. You can tell it's a female bird because the red stripe on the head a broken by a white patch. On males, the red stripe runs unbroken from the base of the beak to the back of the head.
I'm a software engineer living in Louisville, Kentucky. I make video games at Two Scoop Games, volunteer at Louisville Makes Games, and help organize the local tech scene at LouisvilleTech.org. I work primarily with JavaScript, React, Elixir, Node.js, and Ruby.