BirdAnalyst
BBS Route · Maryland · BCR 30

Matthews Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 58 survey years, still active.

103Species 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 →
58Years 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
8Observers

Bird Species Found on Maryland Matthews

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Matthews 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
Common GrackleIcteridae1142025-8%1968
American RobinTurdidae632025+42%1968
European StarlingSturnidae522025-44%1968
Red-winged BlackbirdIcteridae402025-29%1968
Turkey VultureCathartidae392025+946%1969
Northern CardinalCardinalidae362025-48%1968
American CrowCorvidae322025-35%1968
Mourning DoveColumbidae262025+98%1968
Barn SwallowHirundinidae242025+89%1968
Tufted TitmouseParidae232025-13%1968
Carolina WrenTroglodytidae192025+268%1968
Purple MartinHirundinidae162025+197%1968
House SparrowPasseridae142025-85%1968
Northern MockingbirdMimidae142025-42%1968
Red-bellied WoodpeckerPicidae132025+57%1968
Brown-headed CowbirdIcteridae112025-44%1968
Indigo BuntingCardinalidae112025-34%1968
Great Crested FlycatcherTyrannidae102025+73%1968
Black-and-white WarblerParulidae102015+200%1969
Chipping SparrowPasserellidae92025-78%1968
Western Cattle-EgretArdeidae91980n/an/a
House FinchFringillidae92025+92%1988
American GoldfinchFringillidae82025+38%1968
Canada GooseAnatidae82024+518%2001
Laughing GullLaridae72009-82%1999
Orchard OrioleIcteridae52025-48%1968
Song SparrowPasserellidae52025+67%1968
Blue GrosbeakCardinalidae52025-17%1968
Bank SwallowHirundinidae51966n/an/a
Eastern BluebirdTurdidae52025+267%1968
Great Horned OwlStrigidae52011+67%1984
Red-eyed VireoVireonidae42025-41%1968
White-eyed VireoVireonidae42025+0%1968
Carolina ChickadeeParidae42025-23%1968
Bald EagleAccipitridae42025+200%2011
Red-tailed HawkAccipitridae32024+167%1970
Downy WoodpeckerPicidae32024+0%1968
Brown ThrasherMimidae32025-38%1968
Pileated WoodpeckerPicidae32025-25%1982
Chimney SwiftApodidae22025-74%1968

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