BirdAnalyst
BBS Route · Maryland · BCR 28

Accident 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 7 survey years, still active.

95Species 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 →
7Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2018–2025Span
1Observers

Bird Species Found on Maryland Accident 2

Top 40 of 95 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 VireoVireonidae372025-2%2021
American RobinTurdidae332025-2%2021
American CrowCorvidae162025-38%2021
Song SparrowPasserellidae162025-20%2021
Gray CatbirdMimidae162025+100%2021
American GoldfinchFringillidae142025+30%2021
OvenbirdParulidae142025+11%2021
Chipping SparrowPasserellidae132025+8%2021
Barn SwallowHirundinidae132025-23%2021
Eastern TowheePasserellidae112025-7%2021
Common YellowthroatParulidae112025-25%2021
Red-winged BlackbirdIcteridae102025-14%2021
Scarlet TanagerCardinalidae102025-4%2021
European StarlingSturnidae92025-17%2021
Northern House WrenTroglodytidae92025+50%2021
Mourning DoveColumbidae82025+23%2021
Eastern Wood-PeweeTyrannidae82025+83%2021
Black-capped ChickadeeParidae82025+23%2021
Indigo BuntingCardinalidae72025-32%2021
Wood ThrushTurdidae62025-56%2021
Red-bellied WoodpeckerPicidae52025-10%2021
Chimney SwiftApodidae52025+146%2021
Northern CardinalCardinalidae52025-8%2021
Carolina WrenTroglodytidae52024-13%2021
Rock PigeonColumbidae52025-68%2021
Cedar WaxwingBombycillidae52025-29%2023
Acadian FlycatcherTyrannidae42024-33%2021
House SparrowPasseridae42025+57%2021
Eastern PhoebeTyrannidae32025-25%2021
Blue JayCorvidae32025+7%2021
Brown-headed CowbirdIcteridae32025+14%2021
Common GrackleIcteridae32025-8%2021
Chestnut-sided WarblerParulidae32025-33%2021
Tufted TitmouseParidae32025-7%2021
Eastern BluebirdTurdidae32025+100%2021
Rose-breasted GrosbeakCardinalidae32024+50%2021
Hairy WoodpeckerPicidae22024+100%2019
Pileated WoodpeckerPicidae22025+50%2021
BobolinkIcteridae22024-18%2021
Eastern MeadowlarkIcteridae22025+0%2022

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