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BBS Route · Montana · BCR 11

Malta Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 97 species recorded across 43 survey years, still active.

97Species 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 →
43Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2024Span
4Observers

Bird Species Found on Montana Malta

Top 40 of 97 species by most recent count. Each links to its species trend.

Species recorded on the Malta 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 MeadowlarkIcteridae1812024+116%1977
Lark BuntingPasserellidae1462024-35%1977
Franklin's GullLaridae80202117×2005
Red-winged BlackbirdIcteridae702024+26%1977
Horned LarkAlaudidae432024-65%1977
Vesper SparrowPasserellidae222024+427%1980
Wilson's PhalaropeScolopacidae202023-35%1986
American White PelicanPelecanidae182018-39%2001
Mourning DoveColumbidae152024-35%1977
Marbled GodwitScolopacidae132024+267%1977
Brewer's BlackbirdIcteridae132024-7%1977
Brown-headed CowbirdIcteridae122024-44%1977
Sharp-tailed GrousePhasianidae11201914×1998
Ring-billed GullLaridae102024+223%1977
Western KingbirdTyrannidae82024+167%1989
GadwallAnatidae62024-80%1979
American WigeonAnatidae62024-77%1977
Northern ShovelerAnatidae62024-39%1977
RedheadAnatidae62023-67%1988
Ferruginous HawkAccipitridae62024+150%1993
MallardAnatidae52024-84%1977
Brewer's SparrowPasserellidae52024-70%1980
Barn SwallowHirundinidae52024-8%1977
Blue-winged TealAnatidae42024-90%1979
KilldeerCharadriidae42024-66%1977
Yellow-headed BlackbirdIcteridae42024-80%1979
Swainson's HawkAccipitridae42024+17%1979
Sage ThrasherMimidae41997+100%1990
Rock PigeonColumbidae42023+267%2018
WilletScolopacidae32023-33%1977
Eastern KingbirdTyrannidae32024+100%1977
House SparrowPasseridae32024-82%1977
Eared GrebePodicipedidae32024+86%1987
Ring-necked PheasantPhasianidae32024+233%1992
Loggerhead ShrikeLaniidae32023-17%1980
Short-eared OwlStrigidae32018+120%1998
Double-crested CormorantPhalacrocoracidae32018-42%1987
Sprague's PipitMotacillidae32022+20%1992
Pied-billed GrebePodicipedidae21987+100%1975
Green-winged TealAnatidae22016-67%1988

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