BirdAnalyst
BBS Route · Delaware · BCR 30

Dover Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 105 species recorded across 14 survey years, no longer active.

105Species 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 →
14Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–1987Span
3Observers

Bird Species Found on Delaware Dover

Top 40 of 105 species by most recent count. Each links to its species trend.

Species recorded on the Dover 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 GrackleIcteridae2001987+45%1968
European StarlingSturnidae841987-8%1968
Barn SwallowHirundinidae381987+67%1968
House SparrowPasseridae381987-28%1968
American RobinTurdidae371987+41%1968
Red-winged BlackbirdIcteridae341987-27%1968
Mourning DoveColumbidae331987+30%1968
Chimney SwiftApodidae231987+19%1968
Purple MartinHirundinidae221987+50%1968
Northern CardinalCardinalidae181987-44%1968
Northern BobwhiteOdontophoridae171987-42%1968
Laughing GullLaridae171987-12%1975
Song SparrowPasserellidae151987-31%1968
Blue JayCorvidae121987+69%1968
Fish CrowCorvidae121987+0%1968
Eastern KingbirdTyrannidae101987+250%1968
House FinchFringillidae101987+900%1985
Rock PigeonColumbidae91987+3%1969
Common YellowthroatParulidae91987-25%1968
Northern MockingbirdMimidae91987-59%1968
Indigo BuntingCardinalidae81987-24%1968
Carolina ChickadeeParidae61987+38%1968
Black SkimmerLaridae61973-57%1968
MallardAnatidae51987-25%1972
Horned LarkAlaudidae51986-38%1968
Carolina WrenTroglodytidae51987+44%1973
Wood ThrushTurdidae51987+150%1968
Red-bellied WoodpeckerPicidae41987-39%1968
Chipping SparrowPasserellidae41987-54%1968
Blue GrosbeakCardinalidae41987-61%1968
Red-eyed VireoVireonidae41987+50%1968
Gray CatbirdMimidae41987+6%1968
Turkey VultureCathartidae41987+300%1973
Cedar WaxwingBombycillidae41986n/an/a
American CrowCorvidae31987-58%1968
Brown-headed CowbirdIcteridae31987+120%1968
Eastern MeadowlarkIcteridae31987-72%1968
American GoldfinchFringillidae31987-40%1968
Seaside SparrowPasserellidae31985+250%1974
Scarlet TanagerCardinalidae31987+25%1972

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