BirdAnalyst
BBS Route · North Dakota · BCR 11

Turtle Mtns Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 149 species recorded across 41 survey years, still active.

149Species 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2025Span
4Observers

Bird Species Found on North Dakota Turtle Mtns

Top 40 of 149 species by most recent count. Each links to its species trend.

Species recorded on the Turtle Mtns 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
Yellow WarblerParulidae1322025+80%1983
Red-winged BlackbirdIcteridae1252025+81%1983
Red-eyed VireoVireonidae642025+310%1983
Least FlycatcherTyrannidae582025+97%1983
Clay-colored SparrowPasserellidae552025+42%1983
Cedar WaxwingBombycillidae522025+77%1983
Song SparrowPasserellidae512025+163%1983
Common YellowthroatParulidae442025+288%1983
American CrowCorvidae392025-6%1983
Northern House WrenTroglodytidae372025+17%1983
Northern WaterthrushParulidae332025+396%1991
Rock PigeonColumbidae332025+117%1992
Purple MartinHirundinidae282025+360%1983
Warbling VireoVireonidae272025+19%1985
American RobinTurdidae272025-15%1983
Red-necked GrebePodicipedidae26202516×1986
Chipping SparrowPasserellidae242025+867%1983
BobolinkIcteridae232025+263%1983
Black-billed MagpieCorvidae192025+54%1983
Mourning DoveColumbidae182025-51%1983
Vesper SparrowPasserellidae152025-52%1983
Common GrackleIcteridae142025+68%1983
Ring-necked DuckAnatidae12202512×1985
Marsh WrenTroglodytidae122025+286%1986
American GoldfinchFringillidae102025-26%1983
Gray CatbirdMimidae102025+8%1983
VeeryTurdidae102025+108%1983
Brewer's BlackbirdIcteridae102025+25%1986
Baltimore OrioleIcteridae92025-64%1983
Yellow-throated VireoVireonidae92025+109%1983
American RedstartParulidae92025+123%1986
Barn SwallowHirundinidae82025-72%1983
Wilson's SnipeScolopacidae72025+28%1983
KilldeerCharadriidae72025-46%1983
Eastern KingbirdTyrannidae72025+22%1983
Brown-headed CowbirdIcteridae72025-57%1983
Yellow-headed BlackbirdIcteridae72025-86%1983
House SparrowPasseridae72025+50%1983
Black TernLaridae62024-71%1983
Great Crested FlycatcherTyrannidae62025+5%1983

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