BirdAnalyst
BBS Route · North Dakota · BCR 11

Horsehead Lk Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 137 species recorded across 39 survey years, still active.

137Species 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 →
39Years 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
3Observers

Bird Species Found on North Dakota Horsehead Lk

Top 40 of 137 species by most recent count. Each links to its species trend.

Species recorded on the Horsehead Lk 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
Red-winged BlackbirdIcteridae8242025+362%1982
Yellow-headed BlackbirdIcteridae4622025+148%1982
Brown-headed CowbirdIcteridae2032025+108%1982
Marsh WrenTroglodytidae191202537×1982
Common GrackleIcteridae1902025+287%1982
Western MeadowlarkIcteridae1322025-20%1982
Ring-necked PheasantPhasianidae80202547×1989
Common YellowthroatParulidae552025+298%1982
BuffleheadAnatidae50202520×2001
Blue-winged TealAnatidae482025+307%1982
Black TernLaridae482025+316%1983
Ruddy DuckAnatidae452025+272%1982
Mourning DoveColumbidae412025-34%1982
BobolinkIcteridae412025+128%1982
Song SparrowPasserellidae38202513×1991
Western GrebePodicipedidae36202512×1999
Eastern KingbirdTyrannidae352025+73%1982
Savannah SparrowPasserellidae352025+17%1982
MallardAnatidae342025+117%1982
Brewer's BlackbirdIcteridae332025+691%1989
Clay-colored SparrowPasserellidae322025+244%1982
Horned LarkAlaudidae282025-60%1982
GadwallAnatidae262025+11%1982
Lesser ScaupAnatidae252025+321%1982
Forster's TernLaridae25202520×1990
Vesper SparrowPasserellidae242025+100%1982
Yellow WarblerParulidae24202512×1989
Marbled GodwitScolopacidae222025-36%1982
Indigo BuntingCardinalidae221997n/an/a
Western KingbirdTyrannidae212025-34%1982
Northern House WrenTroglodytidae212025+327%1982
Double-crested CormorantPhalacrocoracidae21202511×1989
Wilson's SnipeScolopacidae202025+522%1982
American CootRallidae192025+43%1983
Grasshopper SparrowPasserellidae192025-77%1982
KilldeerCharadriidae172025-10%1982
Sedge WrenTroglodytidae172025+76%1988
American White PelicanPelecanidae162025-25%1988
Pied-billed GrebePodicipedidae152025+250%1982
Bank SwallowHirundinidae152022-80%1990

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