BirdAnalyst
Species · BCR 37 · BBS 2025 Release · 1966–2024

Boat-tailed Grackle In Gulf Coastal Prairie

All regionsGulf Coastal PrairieGeneralists

Boat-tailed Grackle in Gulf Coastal Prairie has edged up: up 22% on the route-weighted index since 1969.

+22%Since 1969
35Routes In Region
56Years

Notable Signals

No notable trend signals for Boat-tailed Grackle in Gulf Coastal Prairie. See the full index history below.

Forecast

If the recent trend holds, Boat-tailed Grackle in Gulf Coastal Prairie is projected to fall about 22% by 2029 — from 27 in 2024 to a central estimate of 21 (95% range 0.00–55). A 5-year backtest shows a typical error of ±104%, with 100% of held-out values landing inside the 95% band.

-22%Change by 2029
21Projected 2029 index
0.00–5595% range
±104%Backtest error
19672029
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
2025220.0056
2026220.0056
2027210.0056
2028210.0055
2029210.0055

Routes In Gulf Coastal Prairie

Routes recording Boat-tailed Grackle in Gulf Coastal Prairie.
Ltl ChenierLOUISIANA3512024
Ltl Chenier 2LOUISIANA2242011
Gran ChenierLOUISIANA2151982
Forked Island 2LOUISIANA1912011
CreoleLOUISIANA1191987
Forked IslandLOUISIANA732024
IndianolaTEXAS582024
Sabine NwrLOUISIANA422008
Sabine Nwr 2LOUISIANA412017
LafitteLOUISIANA321991
KaplanLOUISIANA312023
Hackberry 2LOUISIANA282024
EstherLOUISIANA192024
Hinkles FerTEXAS172022
ChinquapinTEXAS112024
WinnieTEXAS102024
MauriceLOUISIANA82024
Ville PlatteLOUISIANA81993
HackberryLOUISIANA72004
WoodlawnLOUISIANA72021
Vinton 2LOUISIANA62023
Moon LakeTEXAS62011
JuniorLOUISIANA51991
Oyster LakeTEXAS52023
Bayside 3TEXAS42022

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