Guild

Game Birds

23 species tracked. As a group, game birds are -88%Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → since 1968.

Guild SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

Game Birds Population Forecast

If the recent trend holds, Game birds as a group is projected to fall about 100% by 2030 — from 0.53 in 2025 to a central estimate of 0.00 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±151%, with 100% of held-out values landing inside the 95% band.

If the recent trend holds, Game birds as a group is projected to fall about 100% by 2030 — from 0.53 in 2025 to a central estimate of 0.00 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±151%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20260.000.001.2
20270.000.001.2
20280.000.001.2
20290.000.001.2
20300.000.001.2

Game Birds By State

Game birds group trend by state.
Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology →
Colorado-97%10
Idaho-97%10
Ohio-97%4
Maryland-97%4
North Carolina-96%3
West Virginia-93%4
Virginia-92%4
Delaware-90%3
New Jersey-90%4
Indiana-88%3
Pennsylvania-87%4
Wyoming-86%9
Illinois-84%4
Missouri-84%4
Michigan-83%4
Alaska-83%5
Utah-78%8
Texas-75%8
Connecticut-68%4
New York-64%4
Massachusetts-62%4
Oklahoma-59%4
Iowa-58%4
South Dakota-57%6
Oregon-55%10
Montana-50%7
Nebraska-38%5
Kansas-38%5
California-36%8
Minnesota-24%7
Arizona-6%4
Wisconsin-2%7
New Mexico-2%6
Washington+82%8
New Hampshire+158%3
Vermont+380%3
Maine+404%3
North Dakota+588%4
Nevada+638%5

Member Species

Species in the Game birds guild.
TrendPercent 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 →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →
Northern BobwhiteOdontophoridae-87%1968
Rock PtarmiganPhasianidae-54%1984
Plain ChachalacaCracidae-46%1978
Ring-necked PheasantPhasianidae-30%1968
Ruffed GrousePhasianidae-13%1968
Scaled QuailOdontophoridae-3%1969
Spruce GrousePhasianidae+3%1978
Greater Prairie-ChickenPhasianidae+27%1969
Greater Sage-GrousePhasianidae+28%1970
Montezuma QuailOdontophoridae+58%1978
Sharp-tailed GrousePhasianidae+86%1969
Gray PartridgePhasianidae+87%1968
Gunnison Sage-GrousePhasianidae+95%1995
California QuailOdontophoridae+101%1970
Mountain QuailOdontophoridae+108%1970
Gambel's QuailOdontophoridae+130%1970
ChukarPhasianidae+163%1970
Sooty GrousePhasianidae+267%1970
Lesser Prairie-ChickenPhasianidae+365%1972
Willow PtarmiganPhasianidae+562%1984
Dusky GrousePhasianidae+647%1972
Wild TurkeyPhasianidae26×1968
White-tailed PtarmiganPhasianidaen/an/a