BirdAnalyst
BBS Route · Montana · BCR 11

Glentana Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 67 species recorded across 9 survey years, still active.

67Species 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 →
9Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2015–2024Span
2Observers

Bird Species Found on Montana Glentana

Top 40 of 67 species by most recent count. Each links to its species trend.

Species recorded on the Glentana 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
Horned LarkAlaudidae1372024+61%2017
Brown-headed CowbirdIcteridae752024+25%2017
Red-winged BlackbirdIcteridae752024+165%2017
Chestnut-collared LongspurCalcariidae582024+74%2017
Western MeadowlarkIcteridae542024-10%2017
Common GrackleIcteridae392024+944%2017
Yellow-headed BlackbirdIcteridae322022+967%2016
Brewer's BlackbirdIcteridae312024+151%2017
Vesper SparrowPasserellidae312024-21%2017
Lark BuntingPasserellidae302024-84%2017
Baird's SparrowPasserellidae222024+27%2017
Thick-billed LongspurCalcariidae192024-10%2017
Mourning DoveColumbidae162024-22%2017
Savannah SparrowPasserellidae122024-81%2017
Barn SwallowHirundinidae122024+133%2018
Wilson's SnipeScolopacidae112024-21%2017
Cliff SwallowHirundinidae112022-89%2016
Clay-colored SparrowPasserellidae102024-75%2017
Wilson's PhalaropeScolopacidae82024+27%2016
Grasshopper SparrowPasserellidae82024-43%2017
Long-billed CurlewScolopacidae72024+91%2017
Gray PartridgePhasianidae72024+600%2015
Western KingbirdTyrannidae62024+0%2017
House SparrowPasseridae62024-80%2017
KilldeerCharadriidae52024-28%2017
Rock PigeonColumbidae5202315×2017
Eastern KingbirdTyrannidae52024-39%2017
American CrowCorvidae52024+22%2017
GadwallAnatidae42024+200%2016
Marbled GodwitScolopacidae42024+157%2017
BobolinkIcteridae42024-63%2017
Swainson's HawkAccipitridae32024+0%2017
Yellow WarblerParulidae32023+200%2015
Sprague's PipitMotacillidae32024-25%2017
Eurasian Collared-DoveColumbidae32024+150%2016
Northern ShovelerAnatidae32023+100%2017
Ferruginous HawkAccipitridae32024+200%2017
Bank SwallowHirundinidae32024-93%2019
Canada GooseAnatidae32024n/an/a
MallardAnatidae22024-26%2017

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