Bird banding involves trapping the bird, recording data such as measurements, and placing a small band around a leg to denote to future researchers that it has been documented.
In 1965, the Zion Natural History Association (now Zion Forever) published Birds of Zion National Park and Vicinity. At this time, 233 bird species had been identified in and around Zion National Park. As of 2020, 291 bird species have been identified in the park with 450 specimens in the park museum collection.