Bird Conservation Region 3
BCR 3
An ecological region spanning Alaska, with 5 survey routes. BCRs are the natural unit for bird trends.
What Is Moving HereNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →
long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Short-billed Gull has collapsed in BCR 3: down 92% on the route-weighted index since 1995.
long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Red-necked Phalarope has surged in BCR 3: up 21× on the route-weighted index since 1996.
long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Short-eared Owl has fallen sharply in BCR 3: down 63% on the route-weighted index since 1997.
long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Northern Pintail has surged in BCR 3: up 17× on the route-weighted index since 1995.
long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Eastern Yellow Wagtail has fallen sharply in BCR 3: down 59% on the route-weighted index since 1995.
long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Greater White-fronted Goose has surged in BCR 3: up 14× on the route-weighted index since 1997.
How Guilds Are FaringGuild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology →
Survey Routes
Species By FamilyTrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
Hawks, Eagles & Kites Accipitridae
Ducks, Geese & Waterfowl Anatidae
Longspurs & Snow Buntings Calcariidae
Plovers & Lapwings Charadriidae
Wagtails & Pipits Motacillidae
Old World Flycatchers & Chats Muscicapidae
New World Sparrows Passerellidae
Leaf Warblers Phylloscopidae
Sandpipers & Allies Scolopacidae
Skuas & Jaegers Stercorariidae
Owls Strigidae
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.