BirdAnalyst
BBS Route · Maryland · BCR 28

Finzel Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 28 survey years, still active.

116Species 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 →
1995–2025Span
2Observers

Bird Species Found on Maryland Finzel

Top 40 of 116 species by most recent count. Each links to its species trend.

Species recorded on the Finzel 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 VireoVireonidae1382025+37%1997
American RobinTurdidae982025+155%1997
Chipping SparrowPasserellidae712025+107%1997
American CrowCorvidae682025+12%1997
Red-winged BlackbirdIcteridae522025+143%1997
Indigo BuntingCardinalidae472025+17%1997
Turkey VultureCathartidae452025+657%2009
European StarlingSturnidae432025+260%1997
OvenbirdParulidae432025+41%1997
Eastern TowheePasserellidae382025+91%1997
American GoldfinchFringillidae362025+410%1997
Gray CatbirdMimidae352025+315%1997
Wood ThrushTurdidae322025+175%1997
Mourning DoveColumbidae312025+187%1997
Scarlet TanagerCardinalidae312025-7%1997
Cedar WaxwingBombycillidae31202513×1997
Black-throated Green WarblerParulidae30202514×1997
Black-capped ChickadeeParidae302025+203%1997
Barn SwallowHirundinidae292025+224%1997
Chestnut-sided WarblerParulidae282025+277%1997
Song SparrowPasserellidae272025+34%1997
Common YellowthroatParulidae272025+44%1997
Northern CardinalCardinalidae252025+377%1997
Tufted TitmouseParidae252025+226%1997
Field SparrowPasserellidae172025+31%1997
Cliff SwallowHirundinidae152025+171%2001
Northern House WrenTroglodytidae112025+60%1997
Eastern Wood-PeweeTyrannidae102025+171%1997
Common RavenCorvidae102025+280%1999
White-breasted NuthatchSittidae102025+21%1997
Red-bellied WoodpeckerPicidae92025+767%1997
Chimney SwiftApodidae92025+233%2009
Blue JayCorvidae72025-29%1997
Brown ThrasherMimidae72025+575%1999
Downy WoodpeckerPicidae72025+350%2001
Canada GooseAnatidae72021n/an/a
American RedstartParulidae62025+64%1997
Acadian FlycatcherTyrannidae52025+0%1997
Eastern BluebirdTurdidae52025+0%1997
Pileated WoodpeckerPicidae42025+127%1997

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