BirdAnalyst
BBS Route · North Dakota · BCR 11

Sydney Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 16 survey years, no longer active.

87Species 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 →
16Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–1983Span
3Observers

Bird Species Found on North Dakota Sydney

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the Sydney 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 BlackbirdIcteridae1751983+11%1969
Mourning DoveColumbidae1161983+106%1969
Western MeadowlarkIcteridae1121983-19%1969
Cliff SwallowHirundinidae104198334×1969
Horned LarkAlaudidae83198319×1969
Yellow-headed BlackbirdIcteridae771983+538%1969
Brown-headed CowbirdIcteridae711983+23%1969
Grasshopper SparrowPasserellidae431983+223%1970
Vesper SparrowPasserellidae38198318×1976
Barn SwallowHirundinidae351983+246%1969
Western KingbirdTyrannidae321983+317%1969
American CootRallidae31198316×1974
European StarlingSturnidae311983+74%1971
Chestnut-collared LongspurCalcariidae29198312×1970
KilldeerCharadriidae281983+636%1969
Blue-winged TealAnatidae281983+914%1970
Common GrackleIcteridae271983+35%1969
Common YellowthroatParulidae251983+500%1969
MallardAnatidae231983+76%1969
Savannah SparrowPasserellidae221983+211%1970
Northern PintailAnatidae201983+150%1969
Eastern KingbirdTyrannidae181983+100%1969
GadwallAnatidae161983+733%1969
Northern House WrenTroglodytidae121983+291%1971
BobolinkIcteridae111983-5%1969
Upland SandpiperScolopacidae101983+143%1969
American CrowCorvidae91983+114%1969
Clay-colored SparrowPasserellidae91983+105%1969
Yellow WarblerParulidae91983+400%1969
Rock PigeonColumbidae91980+350%1977
SoraRallidae81983+4%1969
American GoldfinchFringillidae81983+222%1970
Brown ThrasherMimidae81983+350%1969
Cedar WaxwingBombycillidae81981+300%1979
Least FlycatcherTyrannidae61983+260%1978
Franklin's GullLaridae61968n/an/a
Brewer's BlackbirdIcteridae51977+400%1967
Warbling VireoVireonidae51983+20%1980
House SparrowPasseridae41983+181%1969
American RobinTurdidae4198311×1969

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