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

Common Grackle In Peninsular Florida

All regionsPeninsular FloridaGeneralists

Common Grackle in Peninsular Florida has fallen sharply: down 58% on the route-weighted index since 1968.

-58%Since 1968
80Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Common Grackle has fallen sharply in Peninsular Florida: down 58% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Common Grackle in Peninsular Florida is projected to fall about 52% by 2029 — from 14 in 2024 to a central estimate of 6.5 (95% range 0.00–18). A 5-year backtest shows a typical error of ±37.5%, with 100% of held-out values landing inside the 95% band.

-52%Change by 2029
6.5Projected 2029 index
0.00–1895% range
±37.5%Backtest error
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 index95% low95% high
20259.30.0021
20268.60.0020
20277.90.0020
20287.20.0019
20296.50.0018

Routes In Peninsular Florida

Routes recording Common Grackle in Peninsular Florida.
KendallFLORIDA1101991
Boca RatonFLORIDA1071994
RedlandsFLORIDA932024
Shawano 2FLORIDA902011
Dale MabryFLORIDA831988
Plantation KFLORIDA802004
GardnerFLORIDA701999
WebbFLORIDA702024
Holey LandFLORIDA662024
AlturasFLORIDA641986
Sugarloaf KeyFLORIDA612004
Key LargoFLORIDA571991
IndiantownFLORIDA552017
Punta GordaFLORIDA522015
St LucieFLORIDA482024
Key WestFLORIDA461987
Ridge HarborFLORIDA432024
ChildsFLORIDA412022
Vero BeachFLORIDA392022
Wildernes PkFLORIDA362014
Myakka HeadFLORIDA332011
Winter GardnFLORIDA332019
CorbettFLORIDA332024
Sunniland GrFLORIDA242021
KissimmeeFLORIDA222022

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