BirdAnalyst
Species · Mississippi · BBS 2025 Release · 1966–2024

House Sparrow Population Trend in Mississippi

All statesGeneralists

House Sparrow in Mississippi has collapsed: down 92% on the route-weighted index since 1968.

-92%Since 1968TrendPercent 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 →
60Routes 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 →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable House Sparrow Trends in MississippiNotable 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 →

House Sparrow has collapsed in Mississippi: down 92% on the route-weighted index since 1968.

House Sparrow Population Forecast in Mississippi

If the recent trend holds, House Sparrow in Mississippi is projected to fall about 100% by 2029 — from 2.3 in 2024 to a central estimate of 0.00 (95% range 0.00–12). A 5-year backtest shows a typical error of ±384.9%, with 100% of held-out values landing inside the 95% band.

-100%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 →
0.00Projected 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 →
0.00–1295% 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 →
±384.9%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, House Sparrow in Mississippi is projected to fall about 100% by 2029 — from 2.3 in 2024 to a central estimate of 0.00 (95% range 0.00–12). A 5-year backtest shows a typical error of ±384.9%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20250.000.0012
20260.000.0012
20270.000.0012
20280.000.0012
20290.000.0012

House Sparrow Survey Routes in Mississippi

Routes recording House Sparrow in Mississippi.
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 →
Tupelo4020221966
Commerce3419931966
Tchula 22519941976
Tchula1619751970
Moon1420211996
Cockrum1320241966
Poplarville1119781972
Fontainbleau1119761976
Vicksburg Np1120212016
Beverly1020111966
Olive Branch920011966
Macon920241966
Eagle Lake820232012
Lucien720131974
Forest720221972
Leaf River720132013
Weir720222008
Scooba 2719871984
Isola620221968
Lake620241966
Mt Carmel620161974
Aberdeen620241970
Winterville620112009
Lake Como619841983
Trace Hinds620222022

House Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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