BBS Route · Montana · BCR 17
Roy Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 107 species recorded across 23 survey years, still active.
107Species Recorded
23Years Surveyed
1988–2024Span
8Observers
Bird Species Found on Montana Roy
Top 40 of 107 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Western Meadowlark | Icteridae | 210 | 2024 | +60% | 1991 | |
| Rock Pigeon | Columbidae | 61 | 2024 | +371% | 1993 | |
| Brown-headed Cowbird | Icteridae | 54 | 2024 | -51% | 1991 | |
| Vesper Sparrow | Passerellidae | 54 | 2024 | -70% | 1991 | |
| Lark Bunting | Passerellidae | 42 | 2024 | -81% | 1991 | |
| Red-winged Blackbird | Icteridae | 21 | 2024 | -46% | 1991 | |
| Grasshopper Sparrow | Passerellidae | 17 | 2024 | +240% | 1992 | |
| Ring-necked Pheasant | Phasianidae | 13 | 2024 | +8% | 1991 | |
| Greater Sage-Grouse | Phasianidae | 12 | 2021 | +33% | 1997 | |
| Mourning Dove | Columbidae | 12 | 2024 | +30% | 1991 | |
| Brewer's Blackbird | Icteridae | 10 | 2024 | -42% | 1993 | |
| Long-billed Curlew | Scolopacidae | 10 | 2024 | +288% | 1993 | |
| Barn Swallow | Hirundinidae | 8 | 2024 | -16% | 1991 | |
| Killdeer | Charadriidae | 7 | 2024 | -52% | 1991 | |
| Wilson's Phalarope | Scolopacidae | 7 | 2024 | +86% | 1993 | |
| Upland Sandpiper | Scolopacidae | 6 | 2024 | +77% | 1991 | |
| Canada Goose | Anatidae | 6 | 2019 | +500% | 1996 | |
| Mallard | Anatidae | 5 | 2024 | -81% | 1991 | |
| Sharp-tailed Grouse | Phasianidae | 4 | 2024 | +50% | 1992 | |
| Horned Lark | Alaudidae | 4 | 2024 | -93% | 1991 | |
| Clay-colored Sparrow | Passerellidae | 4 | 2024 | -77% | 1991 | |
| Mountain Bluebird | Turdidae | 4 | 1989 | n/a | n/a | |
| Ring-billed Gull | Laridae | 4 | 2013 | +258% | 1994 | |
| American Wigeon | Anatidae | 4 | 2023 | -44% | 1994 | |
| Field Sparrow | Passerellidae | 4 | 1991 | n/a | n/a | |
| Northern Rough-winged Swallow | Hirundinidae | 4 | 1993 | n/a | n/a | |
| Spotted Sandpiper | Scolopacidae | 4 | 1999 | +300% | 1996 | |
| Ruddy Duck | Anatidae | 4 | 2019 | +100% | 2007 | |
| Ring-necked Duck | Anatidae | 4 | 2023 | n/a | n/a | |
| Brewer's Sparrow | Passerellidae | 3 | 2024 | +35% | 1995 | |
| Short-eared Owl | Strigidae | 3 | 2024 | +233% | 1999 | |
| Eurasian Collared-Dove | Columbidae | 3 | 2024 | +50% | 2019 | |
| Gadwall | Anatidae | 2 | 2024 | -74% | 1993 | |
| Gray Partridge | Phasianidae | 2 | 2024 | -67% | 1989 | |
| Northern Harrier | Accipitridae | 2 | 2024 | -30% | 1992 | |
| Swainson's Hawk | Accipitridae | 2 | 2023 | +75% | 1993 | |
| Black-billed Magpie | Corvidae | 2 | 2023 | +0% | 2010 | |
| Spotted Towhee | Passerellidae | 2 | 1988 | n/a | n/a | |
| House Sparrow | Passeridae | 2 | 2012 | -77% | 1995 | |
| Sage Thrasher | Mimidae | 2 | 2017 | +100% | 1988 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.