BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Snowy Egret In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieWetland birds

Snowy Egret in Eastern Tallgrass Prairie has collapsed: down 99% on the route-weighted index since 1993.

-99%Since 1993TrendPercent 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 →
11Routes 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 →
14YearsYears 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 →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Snowy Egret has collapsed in Eastern Tallgrass Prairie: down 99% on the route-weighted index since 1993.

Routes In Eastern Tallgrass Prairie

Routes recording Snowy Egret in Eastern Tallgrass Prairie.
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 →
PeoriaOKLAHOMA21994
ColumbiaILLINOIS11998
JamestownILLINOIS12004
MelroseKANSAS11993
Trading PostKANSAS12022
OhioMISSOURI12018
New PointMISSOURI11994
WelchOKLAHOMA12008
CollinsvilleOKLAHOMA12010
WainwrightOKLAHOMA11995
KeetonvilleOKLAHOMA12003

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