I photographed this Prothonotary Warbler building a nest in a dead tree at the Sequoyah National Wildlife Refuge in Oklahoma. It is the only eastern warbler that nests in natural or artificial cavities.

How I Got The Shot – Prothonotary Warbler Building Nest
The Prothonotary Warbler is nesting in the Baker parking area near the water. This is also next to Sally Jones Lake.
I was using a Canon EOS 7D Mark II camera with a Canon EF 500 mm f/4L IS USM lens. I had this setup resting on a bean bag draped over the open window of my pickup.
Taken on April 28, 2020, at 07:38 A.M.
Camera Settings
- AV Mode
- Back-button focus
- Aperture f5.6
- ISO 2000
- Shutter speed – 1/640 sec.
- Auto White Balance
- Single Point, Continuous Auto Focus
- Exposure Bias – +1/2 EV
- Multi Metering
- Focal Length – 500 mm
Here is another photo I took of a Prothonotary Warbler: Prothonotary Warbler With Spider