CAVITY NESTING BIRDS AND ABBREVIATIONS
These are the birds that we find nesting in our boxes and their standard four-letter codes designated by the Bird Banding Lab.
| Bird | Abbreviation |
|---|---|
| Acorn Woodpecker | ACWO |
| American Kestrel | AMKE |
| Ash-throated Flycatcher | ATFL |
| Barn Owl | BNOW |
| Bewick's Wren | BEWR |
| Black-capped Chickadee | BCCH |
| Black Phoebe | BLPH |
| Chestnut-backed Chickadee | CBCH |
| Downy Woodpecker | DOWO |
| European Starling 1 | EUST |
| House Finch (occasionally) | HOFI |
| House Sparrow 1 | HOSP |
| House Wren | HOWR |
| Mountain Bluebird | MOBL |
| Mountain Chickadee | MOCH |
| Nuttall's Woodpecker | NUWO |
| Oak Titmouse | OATI |
| Red-breasted Nuthatch | RBNU |
| Tree Swallow | TRES |
| Violet-green Swallow | VGSW |
| Western Bluebird | WEBL |
| Western Screech-owl | WESO |
| White-breasted Nuthatch | WBNU |
| Wood Duck | WODU |
1 European Starling and House Sparrow are non-native, invasive species. Our Cavity Nesters Recovery Program is intended to help deter the use of nest boxes by these species.
Learn more about the Bird Banding Lab four-letter code system.