BirdAnalyst
BBS Route · North Dakota · BCR 11

Carpio Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 134 species recorded across 50 survey years, still active.

134Species 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 →
50Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2023Span
7Observers

Bird Species Found on North Dakota Carpio

Top 40 of 134 species by most recent count. Each links to its species trend.

Species recorded on the Carpio 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 BlackbirdIcteridae1272023-56%1969
Franklin's GullLaridae702023+132%1975
Brown-headed CowbirdIcteridae692023-49%1969
Common GrackleIcteridae682023+229%1969
MallardAnatidae612023+157%1969
Cliff SwallowHirundinidae572023+10%1969
Mourning DoveColumbidae482023-15%1969
Yellow-headed BlackbirdIcteridae452023-67%1973
Ring-billed GullLaridae412023+83%1978
Northern PintailAnatidae392023-95%1970
Vesper SparrowPasserellidae392023-55%1969
Horned LarkAlaudidae332023-88%1969
Blue-winged TealAnatidae312023-64%1971
Canada GooseAnatidae292019+114%1991
Upland SandpiperScolopacidae272023+76%1970
Western MeadowlarkIcteridae252023-73%1969
Rock PigeonColumbidae232023+119%1970
Brewer's BlackbirdIcteridae232023-26%1969
Clay-colored SparrowPasserellidae232023-76%1969
GadwallAnatidae232023-78%1971
Ring-necked PheasantPhasianidae202023+229%1969
Black TernLaridae202023+200%1971
SoraRallidae202023-12%1972
American GoldfinchFringillidae192023-60%1969
KilldeerCharadriidae182023+14%1969
American RobinTurdidae182023+56%1969
Northern ShovelerAnatidae172023-70%1971
Western KingbirdTyrannidae162023-44%1969
Barn SwallowHirundinidae162023-82%1969
Least FlycatcherTyrannidae152023+21%1969
Savannah SparrowPasserellidae152023-67%1969
Northern House WrenTroglodytidae142023-52%1969
Yellow WarblerParulidae132023-65%1969
RedheadAnatidae132023+125%1979
American White PelicanPelecanidae121974n/an/a
Red-tailed HawkAccipitridae112023+400%1971
House SparrowPasseridae102023-90%1969
Song SparrowPasserellidae92023-63%1969
Chipping SparrowPasserellidae92023+140%1988
Eastern KingbirdTyrannidae82023-81%1969

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