BirdAnalyst
BBS Route · Maryland · BCR 30

Millington Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 55 survey years, still active.

106Species 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2024Span
7Observers

Bird Species Found on Maryland Millington

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Millington 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 GrackleIcteridae722024-56%1968
European StarlingSturnidae712024+75%1968
Northern CardinalCardinalidae602024+44%1968
Carolina WrenTroglodytidae51202429×1970
Red-winged BlackbirdIcteridae502024-60%1968
Turkey VultureCathartidae442024+918%1969
American RobinTurdidae422024+17%1968
Indigo BuntingCardinalidae342024+129%1968
Mourning DoveColumbidae322024-26%1968
Chipping SparrowPasserellidae312024+53%1968
House SparrowPasseridae302024-66%1968
Northern MockingbirdMimidae292024-18%1968
Red-bellied WoodpeckerPicidae212024+130%1968
Carolina ChickadeeParidae202024+150%1968
Blue GrosbeakCardinalidae192024+194%1968
Red-eyed VireoVireonidae182024+354%1968
Brown-headed CowbirdIcteridae172024+63%1968
Song SparrowPasserellidae172024+115%1968
Tufted TitmouseParidae162024+153%1968
Acadian FlycatcherTyrannidae152024+775%1971
Barn SwallowHirundinidae142024-48%1968
Eastern BluebirdTurdidae142024+200%1974
Grasshopper SparrowPasserellidae132024+144%1968
Common YellowthroatParulidae132024-9%1968
Purple MartinHirundinidae102024+233%1968
American CrowCorvidae92024-67%1968
Black VultureCathartidae92024+333%1984
OspreyPandionidae82024+800%1970
American GoldfinchFringillidae82024-45%1968
Horned LarkAlaudidae82024+240%1969
Northern BobwhiteOdontophoridae72023-90%1968
Chimney SwiftApodidae72024+175%1969
Blue-gray GnatcatcherPolioptilidae72024+340%1971
House FinchFringillidae72024+250%1985
Pileated WoodpeckerPicidae72024+220%2005
Downy WoodpeckerPicidae62024+46%1968
Eastern Wood-PeweeTyrannidae62024+146%1968
Rock PigeonColumbidae62024-37%1970
Scarlet TanagerCardinalidae52024+43%1968
OvenbirdParulidae52024+67%1968

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