BirdAnalyst
BBS Route · Maryland · BCR 28

Floyd Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 117 species recorded across 56 survey years, still active.

117Species 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 →
56Years 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
6Observers

Bird Species Found on Maryland Floyd

Top 40 of 117 species by most recent count. Each links to its species trend.

Species recorded on the Floyd 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 VireoVireonidae462025+55%1968
American RobinTurdidae402025-11%1968
American CrowCorvidae242025-10%1968
Song SparrowPasserellidae212025-10%1968
Gray CatbirdMimidae172025-13%1968
Eastern TowheePasserellidae142025-62%1968
Red-winged BlackbirdIcteridae122025-74%1968
Tufted TitmouseParidae122025+333%1968
Common GrackleIcteridae112025-84%1968
Chipping SparrowPasserellidae112025-44%1968
Northern House WrenTroglodytidae102025-27%1968
European StarlingSturnidae92025-68%1968
Scarlet TanagerCardinalidae92025-28%1968
Common YellowthroatParulidae92025+14%1968
Mourning DoveColumbidae82025+440%1968
Northern CardinalCardinalidae82025+156%1968
Wood ThrushTurdidae82025-65%1968
Blue JayCorvidae82025+213%1970
Eastern PhoebeTyrannidae72025+100%1968
Rock PigeonColumbidae72023-17%1977
Acadian FlycatcherTyrannidae72025+89%1969
Eastern MeadowlarkIcteridae62025-63%1968
American GoldfinchFringillidae62025-24%1968
White-breasted NuthatchSittidae62025+57%1968
Black-capped ChickadeeParidae62025+63%1969
Canada GooseAnatidae62023-41%2007
Baltimore OrioleIcteridae52025-20%1968
Barn SwallowHirundinidae52025+50%1968
Yellow WarblerParulidae42025-37%1968
Yellow-billed CuckooCuculidae42022+150%1971
Belted KingfisherAlcedinidae42001+75%1974
Red-bellied WoodpeckerPicidae42025+400%1981
Tree SwallowHirundinidae42025+50%1979
Northern Rough-winged SwallowHirundinidae42019+150%1985
BobolinkIcteridae42025+500%1973
Pileated WoodpeckerPicidae42025+67%1988
Common RavenCorvidae42025+167%2003
House FinchFringillidae42025-39%1984
Brown-headed CowbirdIcteridae32025-72%1968
Indigo BuntingCardinalidae32025-76%1968

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