BBS Route · Alaska · BCR 4
Anchor River Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 64 species recorded across 39 survey years, still active.
64Species Recorded
39Years Surveyed
1983–2024Span
3Observers
Bird Species Found on Alaska Anchor River
Top 40 of 64 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| American Robin | Turdidae | 52 | 2024 | +104% | 1986 | |
| Orange-crowned Warbler | Parulidae | 33 | 2024 | -43% | 1986 | |
| Fox Sparrow | Passerellidae | 32 | 2024 | +42% | 1986 | |
| American Wigeon | Anatidae | 23 | 1995 | n/a | n/a | |
| White-winged Crossbill | Fringillidae | 20 | 2009 | -66% | 1987 | |
| Hermit Thrush | Turdidae | 18 | 2024 | -18% | 1986 | |
| Alder Flycatcher | Tyrannidae | 13 | 2024 | -53% | 1986 | |
| Black-billed Magpie | Corvidae | 13 | 2024 | +100% | 1986 | |
| Ruby-crowned Kinglet | Regulidae | 12 | 2024 | -70% | 1986 | |
| Sandhill Crane | Gruidae | 10 | 2024 | +400% | 1986 | |
| Wilson's Snipe | Scolopacidae | 9 | 2024 | -31% | 1986 | |
| Pine Siskin | Fringillidae | 8 | 2024 | -69% | 1986 | |
| Violet-green Swallow | Hirundinidae | 8 | 2024 | -41% | 1987 | |
| Western Wood-Pewee | Tyrannidae | 7 | 2007 | +300% | 1992 | |
| Golden-crowned Sparrow | Passerellidae | 6 | 2024 | -68% | 1986 | |
| Lincoln's Sparrow | Passerellidae | 6 | 2024 | -22% | 1986 | |
| Northern Waterthrush | Parulidae | 6 | 2024 | +6% | 1987 | |
| Cliff Swallow | Hirundinidae | 5 | 2011 | +175% | 2000 | |
| Ring-necked Pheasant | Phasianidae | 5 | 2023 | +10% | 2000 | |
| Common Raven | Corvidae | 4 | 2024 | -68% | 1986 | |
| Townsend's Warbler | Parulidae | 4 | 2024 | -56% | 1986 | |
| Golden-crowned Kinglet | Regulidae | 4 | 2018 | +133% | 1990 | |
| Red-breasted Nuthatch | Sittidae | 4 | 2024 | -28% | 1998 | |
| Tree Swallow | Hirundinidae | 3 | 2023 | -78% | 1986 | |
| Wilson's Warbler | Parulidae | 3 | 2024 | -85% | 1986 | |
| Boreal Chickadee | Paridae | 3 | 2024 | -38% | 1987 | |
| American Crow | Corvidae | 3 | 2024 | +0% | 2004 | |
| Pine Grosbeak | Fringillidae | 2 | 2017 | -29% | 1986 | |
| Bank Swallow | Hirundinidae | 2 | 1994 | -71% | 1986 | |
| Blackpoll Warbler | Parulidae | 2 | 2004 | -86% | 1986 | |
| Common Merganser | Anatidae | 2 | 2023 | +0% | 2000 | |
| Belted Kingfisher | Alcedinidae | 2 | 2023 | -33% | 1998 | |
| Hairy Woodpecker | Picidae | 2 | 2003 | +25% | 1997 | |
| Red-necked Grebe | Podicipedidae | 2 | 1997 | n/a | n/a | |
| Red-tailed Hawk | Accipitridae | 1 | 2008 | +0% | 1983 | |
| Bald Eagle | Accipitridae | 1 | 2024 | +125% | 1990 | |
| Olive-sided Flycatcher | Tyrannidae | 1 | 2023 | -57% | 1986 | |
| Canada Jay | Corvidae | 1 | 2024 | -58% | 1986 | |
| Savannah Sparrow | Passerellidae | 1 | 2022 | -90% | 1986 | |
| White-crowned Sparrow | Passerellidae | 1 | 2024 | -40% | 1986 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.