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Species · Florida · BBS 2025 Release · 1966–2024

Anhinga Population Trend in Florida

All statesGeneralists

Anhinga in Florida has edged down: down 14% on the route-weighted index since 1968.

-14%Since 1968
95Routes In State
58Years

Notable Anhinga Trends in Florida

No notable trend signals for Anhinga in Florida. See the full index history below.

Anhinga Population Forecast in Florida

If the recent trend holds, Anhinga in Florida is projected to rise about 91% by 2029 — from 0.63 in 2024 to a central estimate of 1.2 (95% range 0.04–2.4). A 5-year backtest shows a typical error of ±74.9%, with 100% of held-out values landing inside the 95% band.

+91%Change by 2029
1.2Projected 2029 index
0.04–2.495% range
±74.9%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
20251.20.042.4
20261.20.042.4
20271.20.042.4
20281.20.042.4
20291.20.042.4

Anhinga Survey Routes in Florida

Routes recording Anhinga in Florida.
Shawano6820021987
Wildernes Pk1920141992
Pinecrest1320241966
Shawano 21220112004
Winter Gardn1020191987
Mabel 2820192012
Boca Raton619941970
Andytown619981974
Deanville620191987
Sandy620151987
Lovedale620111987
Merritt Isl620061991
Dale Mabry519871969
Davie520171987
Holey Land520231987
Babcock Rnch519891988
Micanopy419781966
Romeo420231966
Blackwater419891989
Ft Mccoy320031994
St Lucie320241987
Aripeka320231987
Clewiston320232015
Webb320241992
Broad Branch220231971

Anhinga Population Trend in Other States

alabamaarkansasgeorgialouisianamississippinorth-carolinaoklahomasouth-carolinatexasvirginia

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