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Species · Alaska · BBS 2025 Release · 1966–2024

Wandering Tattler Population Trend in Alaska

All statesShorebirds

Wandering Tattler in Alaska has declined: down 38% on the route-weighted index since 1993.

-38%Since 1993TrendPercent 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 →
13Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
28YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Wandering Tattler Trends in AlaskaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Wandering Tattler in Alaska. See the full index history below.

Wandering Tattler Population Forecast in Alaska

If the recent trend holds, Wandering Tattler in Alaska is projected to fall about 60% by 2029 — from 0.09 in 2024 to a central estimate of 0.04 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±133%, with 100% of held-out values landing inside the 95% band.

-60%Change by 2029TrendPercent 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 →
0.04Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.0995% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±133%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Wandering Tattler in Alaska is projected to fall about 60% by 2029 — from 0.09 in 2024 to a central estimate of 0.04 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±133%, with 100% of held-out values landing inside the 95% band.19862029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20250.040.000.10
20260.040.000.10
20270.040.000.10
20280.040.000.10
20290.040.000.09

Wandering Tattler Survey Routes in Alaska

Routes recording Wandering Tattler in Alaska.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Mccarthy Rd2319921992
Teller320121993
Toklat320242002
Thompson Pas320242002
Nome220232006
Savage219861986
Council220171993
Eagle120072007
Chiniak119861986
Salmon Lake120151993
Skagway120221998
Goodnews Bay120021999
Kanektok Riv120052003

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.