BirdAnalyst
Species · BCR 31 · BBS 2025 Release · 1966–2024

Laughing Gull In Peninsular Florida

All regionsPeninsular FloridaWetland birds

Laughing Gull in Peninsular Florida has edged down: down 18% on the route-weighted index since 1968.

-18%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 →
41Routes In RegionSurvey 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 SignalsNotable 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 Laughing Gull in Peninsular Florida. See the full index history below.

Laughing Gull In Peninsular Florida Population Forecast

If the recent trend holds, Laughing Gull in Peninsular Florida is projected to rise about 109% by 2029 — from 1.9 in 2024 to a central estimate of 4.1 (95% range 0.00–12). A 5-year backtest shows a typical error of ±85%, with 100% of held-out values landing inside the 95% band.

+109%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 →
4.1Projected 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 →
±85%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, Laughing Gull in Peninsular Florida is projected to rise about 109% by 2029 — from 1.9 in 2024 to a central estimate of 4.1 (95% range 0.00–12). A 5-year backtest shows a typical error of ±85%, 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 →
20254.30.0012
20264.20.0012
20274.20.0012
20284.10.0012
20294.10.0012

Routes In Peninsular Florida

Routes recording Laughing Gull in Peninsular Florida.
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 →
Pleasant GrFLORIDA782009
Dale MabryFLORIDA731988
Plantation KFLORIDA562004
Pleasant Grove 2FLORIDA532024
PinelandsFLORIDA401990
Sugarloaf KeyFLORIDA312004
Merritt Island 2FLORIDA262014
FlamingoFLORIDA241983
Key WestFLORIDA181987
Card SoundFLORIDA142016
AripekaFLORIDA132023
Citrus ParkFLORIDA132024
IndiantownFLORIDA122010
Key LargoFLORIDA91991
Myakka Head 2FLORIDA92021
Sandy 2FLORIDA82022
NobletonFLORIDA72018
Myakka HeadFLORIDA62011
ScottsmoorFLORIDA52024
MabelFLORIDA41987
CroomFLORIDA42006
St AugustineFLORIDA32022
San AntonioFLORIDA32006
SalvistaFLORIDA31973
Winter GardnFLORIDA32009

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