BirdAnalyst
BBS Route · North Dakota · BCR 11

Niles Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 118 species recorded across 28 survey years, still active.

118Species 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 →
1989–2025Span
4Observers

Bird Species Found on North Dakota Niles

Top 40 of 118 species by most recent count. Each links to its species trend.

Species recorded on the Niles 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 BlackbirdIcteridae2012025-34%1993
Common GrackleIcteridae1222025-1%1993
Yellow-headed BlackbirdIcteridae742025-82%1993
Brown-headed CowbirdIcteridae682025-72%1993
Franklin's GullLaridae642025-79%1993
Mourning DoveColumbidae492025-63%1993
Cliff SwallowHirundinidae302024-32%1993
MallardAnatidae292025-25%1993
Barn SwallowHirundinidae212025-68%1993
Ring-billed GullLaridae20202519×1993
American CootRallidae182025-22%1993
Common YellowthroatParulidae182025-68%1993
Black TernLaridae172025-66%1993
American RobinTurdidae162025-25%1993
Marsh WrenTroglodytidae142023+170%1993
Rock PigeonColumbidae132025+84%1993
RedheadAnatidae132025+525%1994
GadwallAnatidae112025+25%1993
BobolinkIcteridae112025-72%1993
Northern PintailAnatidae92025-67%1993
Vesper SparrowPasserellidae92025-87%1993
CanvasbackAnatidae92024-61%1996
Blue-winged TealAnatidae82025+78%1993
Ring-necked PheasantPhasianidae82025+225%1993
Eastern KingbirdTyrannidae82025-88%1993
Ruddy DuckAnatidae82024+200%1994
Bank SwallowHirundinidae82015+228%1997
Yellow WarblerParulidae72025+173%1993
Sedge WrenTroglodytidae72025+13%1995
Northern HarrierAccipitridae62025+133%1994
White-faced IbisThreskiornithidae62025-13%2023
Northern ShovelerAnatidae52025+122%1993
WilletScolopacidae52024-35%1993
Western MeadowlarkIcteridae52025-95%1993
Savannah SparrowPasserellidae52025-71%1993
Song SparrowPasserellidae52025-31%1993
Red-necked GrebePodicipedidae52025+200%2011
Purple MartinHirundinidae52021+150%2000
Horned LarkAlaudidae42025-97%1993
Pied-billed GrebePodicipedidae42025-75%1994

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