BirdAnalyst
BBS Route · Montana · BCR 17

Flatwillow 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 94 species recorded across 10 survey years, still active.

94Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2010–2023Span
3Observers

Bird Species Found on Montana Flatwillow 2

Top 40 of 94 species by most recent count. Each links to its species trend.

Species recorded on the Flatwillow 2 route.
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 →TrendPercent 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 →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Western MeadowlarkIcteridae1202023-27%2012
Canada GooseAnatidae682018n/an/a
Rock PigeonColumbidae452023+786%2017
European StarlingSturnidae422023+104%2013
Mourning DoveColumbidae402023-12%2012
Vesper SparrowPasserellidae402023-7%2012
Grasshopper SparrowPasserellidae372023+53%2012
Red-winged BlackbirdIcteridae332023+88%2012
Ring-necked PheasantPhasianidae302023+9%2012
Brewer's SparrowPasserellidae132023+350%2017
Marbled GodwitScolopacidae132013n/an/a
Black-billed MagpieCorvidae122023-30%2012
Cliff SwallowHirundinidae122023+144%2017
American White PelicanPelecanidae102022+67%2010
Brown-headed CowbirdIcteridae102023-38%2012
Brewer's BlackbirdIcteridae102023-33%2012
California GullLaridae102022+100%2017
American RobinTurdidae92023-52%2012
Long-billed CurlewScolopacidae82023-45%2012
Savannah SparrowPasserellidae72023+475%2013
Upland SandpiperScolopacidae62023+35%2012
Common RavenCorvidae62023+71%2017
Barn SwallowHirundinidae52023-19%2012
American KestrelFalconidae52023+71%2013
Western Wood-PeweeTyrannidae52022-25%2013
Common YellowthroatParulidae52023-29%2018
Common NighthawkCaprimulgidae42023-6%2012
Eastern KingbirdTyrannidae42023-41%2012
Horned LarkAlaudidae42023+60%2012
Northern House WrenTroglodytidae42023-38%2018
Ring-billed GullLaridae42017n/an/a
BobolinkIcteridae32023+38%2013
Short-eared OwlStrigidae32014+33%2012
American AvocetRecurvirostridae32018n/an/a
Sage ThrasherMimidae32021n/an/a
Swainson's HawkAccipitridae22011+100%2010
Lark SparrowPasserellidae22023-53%2012
Gray CatbirdMimidae22023-17%2012
Red-breasted NuthatchSittidae22012+100%2010
Western KingbirdTyrannidae22023-33%2017

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.