BirdAnalyst
BBS Route · Maryland · BCR 28

Finzel Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 115 species recorded across 27 survey years, still active.

115Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1995–2024Span
2Observers

Bird Species Found on Maryland Finzel

Top 40 of 115 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 VireoVireonidae1352024+31%1997
American RobinTurdidae1172024+155%1997
Chipping SparrowPasserellidae602024+70%1997
Eastern TowheePasserellidae602024+108%1997
Cedar WaxwingBombycillidae60202413×1997
Gray CatbirdMimidae592024+270%1997
OvenbirdParulidae582024+65%1997
American CrowCorvidae572024+3%1997
European StarlingSturnidae472024+257%1997
Song SparrowPasserellidae392024+34%1997
Indigo BuntingCardinalidae382024-8%1997
Common YellowthroatParulidae372024+39%1997
Mourning DoveColumbidae362024+161%1997
Red-winged BlackbirdIcteridae352024+136%1997
Tufted TitmouseParidae352024+257%1997
Black-capped ChickadeeParidae322024+175%1997
American GoldfinchFringillidae312024+390%1997
Northern CardinalCardinalidae312024+341%1997
Wood ThrushTurdidae292024+133%1997
Chestnut-sided WarblerParulidae272024+223%1997
Black-throated Green WarblerParulidae27202414×1997
Barn SwallowHirundinidae222024+257%1997
Northern House WrenTroglodytidae202024+72%1997
Black-and-white WarblerParulidae172024+529%1999
Red-bellied WoodpeckerPicidae152024+600%1997
Scarlet TanagerCardinalidae152024-36%1997
Eastern Wood-PeweeTyrannidae142024+164%1997
Yellow WarblerParulidae142024+425%1997
Blue-headed VireoVireonidae122024+800%1999
Pileated WoodpeckerPicidae102024+155%1997
Brown-headed CowbirdIcteridae102024+100%1997
Field SparrowPasserellidae102024-10%1997
Hooded WarblerParulidae102024+183%1997
Brown ThrasherMimidae102024+450%1999
American RedstartParulidae92024+64%1997
Eastern PhoebeTyrannidae82024+50%1997
Downy WoodpeckerPicidae82024+300%2001
Blue JayCorvidae72024-4%1997
Rose-breasted GrosbeakCardinalidae72024+160%1997
Canada GooseAnatidae72021n/an/a

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