Deposited in my front yard.

Click the image for a larger version.
This was formerly the property of a Great Horned Owl – the one with ‘ear’ tufts. The bird can be heard – and occasionally seen – at dusk in my neighborhood.
I used just one strobe to transilluminate the feather from the rear with a reflector next to the lens to confer some front lighting.
Leica SL2S, 135mm El Nikkor at f/16, Nikon PB4 bellows, ISO200, 1 strobe. 9 images focus stacked in Helicon Focus. The ‘floating in air’ effect was obtained by inserting a thin bamboo stick into the base of the feather and subsequently removing it in post. Take a look at the large version, by clicking the image above, and you will see that the El Nikkor enlarging lens does not disappoint.