So last fall I was checking the remains of my garden next to the house and found this dead bird laying under the tomato plant. I dug it a hole and buried the poor thing. I recalled that I had buried it under a large rock and decided to dig it up just to take a look. The whole skull plus jaw bone came right up and it was so perfect. I cleaned it up and here it is now. It’s so fragile, when it was wet the whole cranium was transparent, even now it’s faintly apparent that its see through.
I consulted my resident bird expert and she said it looked like a house sparrow which would mean it is legal to keep. I suspect the bird died of internal damage after hitting the side of my house or the window, as I recall it was not visibly injured on the outside.