BirdAnalyst
BBS Route · Montana · BCR 10

Lima Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 27 survey years, still active.

100Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2024Span
2Observers

Bird Species Found on Montana Lima

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Lima 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
Franklin's GullLaridae572004+185%1999
Rock PigeonColumbidae47202413×1998
Warbling VireoVireonidae33202421×2000
Black-billed MagpieCorvidae322024+500%1996
Brewer's BlackbirdIcteridae302024-40%1996
Vesper SparrowPasserellidae242024-38%1996
Cliff SwallowHirundinidae202024+76%1998
Brewer's SparrowPasserellidae192024+192%2000
Horned LarkAlaudidae152024-52%1996
White-throated SwiftApodidae132024-27%2006
American RobinTurdidae122024-43%1996
Golden EagleAccipitridae122019+275%2004
Bald EagleAccipitridae112024+300%2011
Northern Rough-winged SwallowHirundinidae102024+287%1998
Yellow WarblerParulidae102024-40%1998
Mourning DoveColumbidae102024+525%1999
Song SparrowPasserellidae92024+11%1996
Violet-green SwallowHirundinidae82024-87%1998
Long-billed CurlewScolopacidae82024+750%1999
Willow FlycatcherTyrannidae72024+67%1999
Common RavenCorvidae72024+215%1999
Tree SwallowHirundinidae72024+613%1999
California GullLaridae72004-77%1999
Brown-headed CowbirdIcteridae62024+29%1996
Savannah SparrowPasserellidae62024-59%1996
Hammond's FlycatcherTyrannidae62019+125%1999
European StarlingSturnidae52024+46%1998
Western MeadowlarkIcteridae52024-84%1996
Bank SwallowHirundinidae52024-38%2000
White-crowned SparrowPasserellidae42024+140%1999
MacGillivray's WarblerParulidae42024+57%1998
Mountain ChickadeeParidae42018+71%1999
Green-winged TealAnatidae42006+100%1996
Sage ThrasherMimidae42024+14%2012
KilldeerCharadriidae32024+0%1996
Dusky FlycatcherTyrannidae32024+180%2002
American CrowCorvidae32024-76%1996
Chipping SparrowPasserellidae32024-50%1996
Spotted TowheePasserellidae32024-20%1996
Green-tailed TowheePasserellidae32024+27%1998

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