BirdAnalyst
BBS Route · Maryland · BCR 28

Wolfsville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 109 species recorded across 57 survey years, still active.

109Species 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 →
57Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
7Observers

Bird Species Found on Maryland Wolfsville

Top 40 of 109 species by most recent count. Each links to its species trend.

Species recorded on the Wolfsville 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
American RobinTurdidae532025+82%1968
House SparrowPasseridae432025-57%1968
Red-winged BlackbirdIcteridae352025-35%1968
Northern CardinalCardinalidae342025+123%1968
Mourning DoveColumbidae302025+200%1968
Red-eyed VireoVireonidae302025+84%1968
Gray CatbirdMimidae292025+243%1968
Northern MockingbirdMimidae242025+379%1968
European StarlingSturnidae232025-65%1968
Barn SwallowHirundinidae232025-3%1968
Eastern Wood-PeweeTyrannidae222025+55%1968
American CrowCorvidae212025-7%1968
Wood ThrushTurdidae202025+2%1968
Indigo BuntingCardinalidae192025-33%1968
Song SparrowPasserellidae172025+42%1968
Turkey VultureCathartidae172025+260%1970
Blue JayCorvidae172025+115%1969
Carolina WrenTroglodytidae152025+943%1969
Tufted TitmouseParidae152025+5%1968
House FinchFringillidae152025+289%1983
Red-bellied WoodpeckerPicidae142025+360%1968
American GoldfinchFringillidae142025+39%1968
Acadian FlycatcherTyrannidae122025+46%1968
Chipping SparrowPasserellidae122025-18%1968
Eastern BluebirdTurdidae122025+700%1970
Common GrackleIcteridae112025-85%1968
Brown-headed CowbirdIcteridae92025-47%1968
OvenbirdParulidae82025+86%1968
Great Crested FlycatcherTyrannidae62025+13%1968
Hooded WarblerParulidae62025+300%1972
Canada GooseAnatidae62024+69%1989
Rock PigeonColumbidae52025-20%1968
Chimney SwiftApodidae52025-59%1968
Rose-breasted GrosbeakCardinalidae52005+150%1988
Scarlet TanagerCardinalidae42025-40%1968
Northern House WrenTroglodytidae42025-58%1968
Pileated WoodpeckerPicidae42025+200%1974
KilldeerCharadriidae42025+14%1970
Field SparrowPasserellidae32025-78%1968
Louisiana WaterthrushParulidae32025+100%1969

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