BirdAnalyst
BBS Route · Maryland · BCR 28

Potomac Park Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 108 species recorded across 55 survey years, still active.

108Species 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2025Span
2Observers

Bird Species Found on Maryland Potomac Park

Top 40 of 108 species by most recent count. Each links to its species trend.

Species recorded on the Potomac Park 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
Common GrackleIcteridae472025-71%1972
American RobinTurdidae462025-39%1972
European StarlingSturnidae252025-73%1972
Gray CatbirdMimidae242025+1%1972
Song SparrowPasserellidae202025-30%1972
Northern CardinalCardinalidae202025+0%1972
Red-eyed VireoVireonidae192025+248%1972
Red-winged BlackbirdIcteridae112025-84%1972
Chimney SwiftApodidae102025-48%1972
American CrowCorvidae102025-42%1972
Barn SwallowHirundinidae102025-66%1972
Mourning DoveColumbidae92025+87%1972
Carolina WrenTroglodytidae92025+150%1973
American GoldfinchFringillidae82025-75%1972
Indigo BuntingCardinalidae82025-64%1972
House FinchFringillidae82025+257%1979
Yellow-billed CuckooCuculidae72024+23%1972
Red-bellied WoodpeckerPicidae72025+725%1972
Chipping SparrowPasserellidae72025-70%1972
House SparrowPasseridae72025-81%1972
Field SparrowPasserellidae62025-68%1972
Yellow WarblerParulidae62024+17%1972
OvenbirdParulidae62025+200%1972
Wood ThrushTurdidae62025-67%1972
Turkey VultureCathartidae52023+67%1979
Eastern TowheePasserellidae52025-76%1972
Black-capped ChickadeeParidae52024-39%1972
Wild TurkeyPhasianidae52024+60%1990
Blue JayCorvidae42025+36%1972
Brown ThrasherMimidae42025-63%1972
Orchard OrioleIcteridae42025+80%1975
Wood DuckAnatidae42023+300%1993
Rock PigeonColumbidae32025-50%1972
Red-tailed HawkAccipitridae32021+67%1983
Great Crested FlycatcherTyrannidae32024-11%1972
Eastern PhoebeTyrannidae32025-26%1972
Brown-headed CowbirdIcteridae32025-65%1972
Baltimore OrioleIcteridae32025-65%1972
Scarlet TanagerCardinalidae32025-5%1972
Yellow-throated VireoVireonidae32025-36%1974

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