BirdAnalyst
BBS Route · Maryland · BCR 29

Fowblesburg Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 96 species recorded across 52 survey years, still active.

96Species 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 →
52Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2017Span
2Observers

Bird Species Found on Maryland Fowblesburg

Top 40 of 96 species by most recent count. Each links to its species trend.

Species recorded on the Fowblesburg 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 CrowCorvidae552017+25%1968
European StarlingSturnidae532017-77%1968
Mourning DoveColumbidae322017-36%1968
Northern MockingbirdMimidae302017+23%1968
American RobinTurdidae282017-67%1968
Northern CardinalCardinalidae262017+147%1968
Barn SwallowHirundinidae182017-38%1968
Red-winged BlackbirdIcteridae172017-91%1968
Song SparrowPasserellidae152017+63%1968
Gray CatbirdMimidae142017-35%1968
Carolina WrenTroglodytidae142017+350%1971
Chipping SparrowPasserellidae122017+6%1968
House FinchFringillidae112017+358%1985
Tufted TitmouseParidae82017+243%1968
Red-bellied WoodpeckerPicidae72017+167%1968
Common GrackleIcteridae52017-93%1968
Blue JayCorvidae42017-81%1968
Indigo BuntingCardinalidae42017-49%1968
House SparrowPasseridae42017-95%1968
Carolina ChickadeeParidae42016-46%1970
Eastern BluebirdTurdidae42017+375%1970
Turkey VultureCathartidae32017+20%1975
Field SparrowPasserellidae32015-87%1968
Eastern TowheePasserellidae32016-71%1968
Wood ThrushTurdidae32017-77%1968
Scarlet TanagerCardinalidae32016+75%1969
Savannah SparrowPasserellidae31977+200%1969
Northern BobwhiteOdontophoridae22000-88%1968
Rock PigeonColumbidae22017-89%1968
Eastern KingbirdTyrannidae22017-64%1968
Great Crested FlycatcherTyrannidae22015-71%1968
Acadian FlycatcherTyrannidae22016+133%1968
American GoldfinchFringillidae22017-55%1968
Grasshopper SparrowPasserellidae21998-91%1968
Red-eyed VireoVireonidae22017+0%1969
Northern House WrenTroglodytidae22017-48%1968
Horned LarkAlaudidae22017-50%1969
Blue GrosbeakCardinalidae22015+100%1989
Tree SwallowHirundinidae22017-30%1996
KilldeerCharadriidae12015-33%1968

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