BirdAnalyst
BBS Route · Maryland · BCR 28

Steyer Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 28 survey years, still active.

114Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1996–2024Span
1Observers

Bird Species Found on Maryland Steyer

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Steyer 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-eyed VireoVireonidae302024+20%1998
American RobinTurdidae262024-50%1998
American CrowCorvidae212024-10%1998
Song SparrowPasserellidae152024-39%1998
Red-winged BlackbirdIcteridae122024-50%1998
Common YellowthroatParulidae122024-25%1998
Gray CatbirdMimidae102024-10%1998
Mourning DoveColumbidae92024+7%1998
American GoldfinchFringillidae82024+33%1998
Yellow WarblerParulidae82024-20%1998
European StarlingSturnidae72024-77%1998
Chipping SparrowPasserellidae72024-70%1998
OvenbirdParulidae72024+170%1998
American RedstartParulidae72024-13%1998
Eastern TowheePasserellidae62024+22%1998
Scarlet TanagerCardinalidae62024-55%1998
House FinchFringillidae52023+140%1998
Red-bellied WoodpeckerPicidae52024+100%2001
KilldeerCharadriidae42024-20%1998
BobolinkIcteridae42023-50%1998
Common GrackleIcteridae42024-65%1998
Cedar WaxwingBombycillidae42024-71%1999
Northern House WrenTroglodytidae42024-30%1998
Wood ThrushTurdidae42024-60%1998
Brown-headed CowbirdIcteridae32023-10%1998
Eastern MeadowlarkIcteridae32024-69%1998
Barn SwallowHirundinidae32024-90%1998
Blue-headed VireoVireonidae32024+225%1998
House SparrowPasseridae32024-64%1998
Turkey VultureCathartidae32023+0%2000
Eastern KingbirdTyrannidae32019+67%1999
Common RavenCorvidae32024+50%1999
Hairy WoodpeckerPicidae22024-17%2000
Chimney SwiftApodidae22023-30%1998
Blue JayCorvidae22024-50%1998
Vesper SparrowPasserellidae22012+25%2001
Northern CardinalCardinalidae22024+180%1998
Rose-breasted GrosbeakCardinalidae22023-44%1998
Indigo BuntingCardinalidae22024-82%1998
Black-throated Green WarblerParulidae22019+275%1998

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