BirdAnalyst
Species · Florida · BBS 2026 Release · 1966–2025

Yellow-billed Cuckoo Population Trend in Florida

All statesForest birds

Yellow-billed Cuckoo in Florida has declined: down 40% on the route-weighted index since 1968.

-40%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 →
116Routes 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 →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Yellow-billed Cuckoo Trends in FloridaNotable 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 Yellow-billed Cuckoo in Florida. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Florida

If the recent trend holds, Yellow-billed Cuckoo in Florida is projected to fall about 42% by 2030 — from 2.1 in 2025 to a central estimate of 1.2 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±20.6%, with 100% of held-out values landing inside the 95% band.

-42%Change by 2030TrendPercent 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 →
1.2Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–2.595% 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 →
±20.6%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, Yellow-billed Cuckoo in Florida is projected to fall about 42% by 2030 — from 2.1 in 2025 to a central estimate of 1.2 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±20.6%, 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 →
20261.40.092.6
20271.30.052.6
20281.30.012.6
20291.20.002.5
20301.20.002.5

Yellow-billed Cuckoo Survey Routes in Florida

Routes recording Yellow-billed Cuckoo in 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 →
Broad Branch1920251967
Miccosukee1720251966
Covington1420211967
Belmont1220251966
Miller Xrds1120191987
Pinetta920251987
Telogia819851968
Myakka Head620001968
Sanderson620211971
Gardner619991987
Oak Grove 2620252025
Nixon619861985
Sanderson 2620242024
Blountstown520251966
Hilliard520251967
Seminole Hills 2520222002
Apalachicola520251987
Belmore420241966
Alturas419861972
Broward419731966
Tamiami419741966
Ft Mccoy420231987
New Hope420112009
Lake Buffum420161987
Laurel Hill420252010

Yellow-billed Cuckoo Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.