BirdAnalyst
BBS Route · Montana · BCR 10

Lima Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 28 survey years, still active.

103Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
2Observers

Bird Species Found on Montana Lima

Top 40 of 103 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
Rock PigeonColumbidae58202516×1998
Franklin's GullLaridae572004+185%1999
Ring-billed GullLaridae402025-54%1995
Brewer's SparrowPasserellidae302025+392%2000
White-throated SwiftApodidae302025+21%2006
Bald EagleAccipitridae302025+544%2011
Warbling VireoVireonidae28202526×2000
American RobinTurdidae252025-15%1996
European StarlingSturnidae212025+132%1998
Yellow WarblerParulidae192025-3%1998
Song SparrowPasserellidae182025+57%1996
Tree SwallowHirundinidae172025+463%1999
Brewer's BlackbirdIcteridae162025-36%1996
Cliff SwallowHirundinidae162025+84%1998
Common RavenCorvidae142025+105%1999
Vesper SparrowPasserellidae142025-34%1996
Bank SwallowHirundinidae132025+31%2000
Savannah SparrowPasserellidae122025-60%1996
Red-tailed HawkAccipitridae112025+100%1996
Horned LarkAlaudidae112025-56%1996
Brown-headed CowbirdIcteridae112025+86%1996
Red-winged BlackbirdIcteridae112025+69%1996
Willow FlycatcherTyrannidae102025+200%1999
Black-billed MagpieCorvidae102025+418%1996
Western MeadowlarkIcteridae82025-73%1996
Green-tailed TowheePasserellidae82025+82%1998
Mountain BluebirdTurdidae82025-12%1996
California GullLaridae72004-77%1999
Western TanagerCardinalidae62025+143%2004
Hammond's FlycatcherTyrannidae62019+125%1999
KilldeerCharadriidae52025+25%1996
Chipping SparrowPasserellidae52025-33%1996
Violet-green SwallowHirundinidae52025-86%1998
Rock WrenTroglodytidae52025-50%1996
Golden EagleAccipitridae52025+350%2004
Sage ThrasherMimidae52025+43%2012
Dusky FlycatcherTyrannidae42025+200%2002
White-crowned SparrowPasserellidae42024+140%1999
Mountain ChickadeeParidae42018+71%1999
Hermit ThrushTurdidae42025+40%1996

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.