BirdAnalyst
BBS Route · Maryland · BCR 28

Accident 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 91 species recorded across 6 survey years, still active.

91Species 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 →
6Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2018–2024Span
1Observers

Bird Species Found on Maryland Accident 2

Top 40 of 91 species by most recent count. Each links to its species trend.

Species recorded on the Accident 2 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 VireoVireonidae422024+5%2021
American RobinTurdidae372024+6%2021
OvenbirdParulidae222024+14%2021
Song SparrowPasserellidae202024-8%2021
Mourning DoveColumbidae172024+42%2021
American CrowCorvidae172024-20%2021
Red-winged BlackbirdIcteridae152024-4%2021
Chipping SparrowPasserellidae152024+0%2021
Gray CatbirdMimidae152024+68%2021
Chimney SwiftApodidae132024+340%2019
Indigo BuntingCardinalidae122024-22%2021
Common YellowthroatParulidae122024-26%2021
European StarlingSturnidae112024+0%2021
Eastern TowheePasserellidae112024-3%2021
Barn SwallowHirundinidae112024-41%2021
American GoldfinchFringillidae102024+52%2021
Northern House WrenTroglodytidae102024+40%2021
Common GrackleIcteridae92024+28%2021
Black-capped ChickadeeParidae92024+9%2021
Red-bellied WoodpeckerPicidae82024+5%2021
Eastern Wood-PeweeTyrannidae82024+50%2021
White-breasted NuthatchSittidae82024+73%2021
Tufted TitmouseParidae82024-4%2021
Eastern PhoebeTyrannidae72024+0%2021
Blue JayCorvidae72024+27%2021
Northern CardinalCardinalidae62024+4%2021
Pileated WoodpeckerPicidae52024+50%2021
Scarlet TanagerCardinalidae52024-11%2021
Carolina WrenTroglodytidae52024-13%2021
Cedar WaxwingBombycillidae52024+400%2019
Acadian FlycatcherTyrannidae42024-33%2021
Black-throated Blue WarblerParulidae42021+100%2018
Louisiana WaterthrushParulidae42023+150%2021
House SparrowPasseridae42024+29%2021
Wood ThrushTurdidae42024-53%2021
Chestnut-sided WarblerParulidae32024-33%2021
Rose-breasted GrosbeakCardinalidae32024+50%2021
Hairy WoodpeckerPicidae22024+100%2019
Downy WoodpeckerPicidae22022+0%2019
BobolinkIcteridae22024-18%2021

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