BirdAnalyst
BBS Route · Maryland · BCR 30

Furnace Town Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 10 survey years, still active.

92Species 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 →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2015–2025Span
1Observers

Bird Species Found on Maryland Furnace Town

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Furnace Town 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
Laughing GullLaridae842025+35%2017
Pine WarblerParulidae482025+40%2017
Tufted TitmouseParidae422025+9%2017
Blue-gray GnatcatcherPolioptilidae422025+28%2017
American CrowCorvidae352025-22%2017
OvenbirdParulidae292025+5%2017
Northern CardinalCardinalidae272025+1%2017
Blue GrosbeakCardinalidae272025-12%2017
Chipping SparrowPasserellidae252025-8%2017
Purple MartinHirundinidae252025+56%2017
American GoldfinchFringillidae222025+58%2017
Brown-headed CowbirdIcteridae212025-4%2017
Red-winged BlackbirdIcteridae202025+225%2017
Carolina ChickadeeParidae172025-25%2017
Eastern Wood-PeweeTyrannidae142025-6%2017
Indigo BuntingCardinalidae142025-51%2017
European StarlingSturnidae132025-37%2017
Canada GooseAnatidae122024-32%2017
Downy WoodpeckerPicidae122025-46%2017
Great Crested FlycatcherTyrannidae122025-11%2017
Common GrackleIcteridae112025-70%2017
Red-eyed VireoVireonidae112025-3%2017
Prothonotary WarblerParulidae112025-11%2017
Yellow-billed CuckooCuculidae102025-29%2017
White-eyed VireoVireonidae102025-54%2017
Mourning DoveColumbidae92025-26%2017
Acadian FlycatcherTyrannidae82025-41%2017
Summer TanagerCardinalidae82025+81%2017
Brown-headed NuthatchSittidae82025+350%2018
Pileated WoodpeckerPicidae72025+65%2017
Carolina WrenTroglodytidae72025+156%2017
Eastern BluebirdTurdidae72025+111%2017
Glossy IbisThreskiornithidae72018n/an/a
KilldeerCharadriidae62025-9%2017
Wood ThrushTurdidae62025-36%2017
Tree SwallowHirundinidae62024+200%2017
Turkey VultureCathartidae52025-52%2017
Fish CrowCorvidae52025-24%2017
Yellow-throated WarblerParulidae52025+63%2017
Common YellowthroatParulidae52025-47%2017

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