Long-term Nest Monitoring

Program at a Glance

Focal Species: American Kestrel, Western Screech-owl, Northern Saw-whet Owl, Barn Owl
Study Area: Salt Lake City, UT; Tucson, AZ; Moscow, ID

About the Program

Each spring, HWI community science volunteers and our staff monitor a large network of nest boxes placed in diverse landscapes, including wildland, agricultural, urban, and heavily developed areas. Throughout the season, we collect data such as what species are nesting in our boxes, how many eggs they lay, the success rate of fledging, and morphological measurements. Thanks to our many volunteers, we are able to collect large amounts of data that provide a glimpse into the reproduction and survival of cavity-nesting raptors.

2023 Program Highlights

Box Visits
Nests Monitored
Adults and Nestlings Banded
Community Scientists

Future of the Program

This program began as our American Kestrel Studies, but very quickly, we found many other species of raptors nesting in our boxes. As a result, we expanded the program to include the many owl species taking residence. This program has led us down the path of monitoring other potential stressors, such as rodenticide levels in raptors’ blood and the impact different habitats may have on their survival. Our network of boxes continues to grow, on average adding about 100 more boxes each year.

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Program Partners

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