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

Northern House Wren In Chihuahuan Desert

Northern House Wren in Chihuahuan Desert has surged: up 113% on the route-weighted index since 1977.

+113%Since 1977
4Routes In Region
43Years

Notable Signals

long arc increasecomputed index

Northern House Wren has surged in Chihuahuan Desert: up 113% on the route-weighted index since 1977.

Forecast

If the recent trend holds, Northern House Wren in Chihuahuan Desert is projected to fall about 31% by 2029 — from 0.59 in 2024 to a central estimate of 0.40 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±58.9%, with 100% of held-out values landing inside the 95% band.

-31%Change by 2029
0.40Projected 2029 index
0.001.195% range
±58.9%Backtest error
19742029
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
20250.430.001.1
20260.420.001.1
20270.410.001.1
20280.410.001.1
20290.400.001.1

Routes In Chihuahuan Desert

Routes recording Northern House Wren in Chihuahuan Desert.
CloudcroftNEW-MEXICO172024
CarrizozoNEW-MEXICO41974
PinonNEW-MEXICO32000
Capitan Mtn.NEW-MEXICO21994

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