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Species · Texas · BBS 2025 Release · 1966–2024

Neotropic Cormorant Population Trend in Texas

All statesWetland birds

Neotropic Cormorant in Texas has surged: up 419% on the route-weighted index since 1976.

+419%Since 1976
46Routes In State
42Years

Notable Neotropic Cormorant Trends in Texas

long arc increasecomputed index

Neotropic Cormorant has surged in Texas: up 419% on the route-weighted index since 1976.

Neotropic Cormorant Population Forecast in Texas

If the recent trend holds, Neotropic Cormorant in Texas is projected to rise about 283% by 2029 — from 0.14 in 2024 to a central estimate of 0.55 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±154.8%, with 100% of held-out values landing inside the 95% band.

+283%Change by 2029
0.55Projected 2029 index
0.00–1.395% range
±154.8%Backtest error
19692029
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
20250.520.001.3
20260.530.001.3
20270.530.001.3
20280.540.001.3
20290.550.001.3

Neotropic Cormorant Survey Routes in Texas

Routes recording Neotropic Cormorant in Texas.
Kingsville4320071979
Progreso3020091995
L. Atascosa Nwr1720232003
Rachal1620112011
San Ygnacio1519821972
Bayside1220101994
Goliad Prairie1120162011
Campbellton1020161977
Quitman Canyon 21020212018
Hinkles Fer920171969
Bayside 2920041997
Weinert919891988
George West820152014
Loyola Beach 2820242010
Winnie620172017
Encinal 2620222016
Rock Island520212019
Town Bluff420082003
Massey Lake420242016
Bonner420242004
Heidelberg420232023
Stowell320232011
Easton 2320152015
Sadler320242014
Lag Atascosa220091996

Neotropic Cormorant Population Trend in Other States

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