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

Elf Owl In Chihuahuan Desert

All regionsChihuahuan DesertGeneralists

Elf Owl in Chihuahuan Desert has declined: down 26% on the route-weighted index since 1997.

-26%Since 1997TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
7Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Elf Owl in Chihuahuan Desert. See the full index history below.

Routes In Chihuahuan Desert

Routes recording Elf Owl in Chihuahuan Desert.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
GageNEW-MEXICO12010
Hot SpringsTEXAS12000
LangtryTEXAS11997
CastolonTEXAS12005
ToyahvaleTEXAS12024
Quitman Canyon 2TEXAS12014
Chisos BasinTEXAS12012

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