BirdAnalyst
Species · Minnesota · BBS 2025 Release · 1966–2024

Great Gray Owl Population Trend in Minnesota

All statesGeneralists

Great Gray Owl in Minnesota has declined: down 42% on the route-weighted index since 1986.

-42%Since 1986TrendPercent 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 StateSurvey 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 Great Gray Owl Trends in MinnesotaNotable 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 Great Gray Owl in Minnesota. See the full index history below.

Great Gray Owl Survey Routes in Minnesota

Routes recording Great Gray Owl in Minnesota.
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 →
Sawbill Lndg120132001
Floodwood119831974
Cohasset119891989
Jordan120072001
Babbitt120132013
Bigfork120242024
Nebish120162016
Little Fork120092009
Waskish119861983
Red Lake120082008
Cromwell119941994

Great Gray Owl Population Trend in Other States

alaskacaliforniaidahomontanaoregonwisconsin

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