BirdAnalyst
Species · BCR 35 · BBS 2025 Release · 1966–2024

Black-crowned Night Heron In Chihuahuan Desert

All regionsChihuahuan DesertWetland birds

Black-crowned Night Heron in Chihuahuan Desert has held roughly steady: down 7% on the route-weighted index since 1995.

-7%Since 1995
6Routes In Region
23Years

Notable Signals

No notable trend signals for Black-crowned Night Heron in Chihuahuan Desert. See the full index history below.

Forecast

If the recent trend holds, Black-crowned Night Heron in Chihuahuan Desert is projected to rise about 86% by 2029 — from 0.07 in 2024 to a central estimate of 0.13 (95% range 0.00–0.39). A 5-year backtest shows a typical error of ±75.3%, with 60% of held-out values landing inside the 95% band.

+86%Change by 2029
0.13Projected 2029 index
0.00–0.3995% range
±75.3%Backtest error
19922029
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
20250.130.000.39
20260.130.000.39
20270.130.000.39
20280.130.000.39
20290.130.000.39

Routes In Chihuahuan Desert

Routes recording Black-crowned Night Heron in Chihuahuan Desert.
Quitman Canyon 2TEXAS32021
Laborcita 2NEW-MEXICO22024
Quitman Cyn.TEXAS22009
CanutilloTEXAS22022
LaborcitaNEW-MEXICO12019
MesillaNEW-MEXICO11997

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