BBS Route · Maryland · BCR 30

Newark Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 125 species recorded across 56 survey years, still active.

Bird Species Found on Maryland Newark

Top 40 of 125 species by most recent count. Each links to its species trend.

Species recorded on the Newark 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
Ring-billed GullLaridae100198417×1979
American CrowCorvidae872024+128%1968
Common GrackleIcteridae792024-52%1968
European StarlingSturnidae622024-13%1968
Indigo BuntingCardinalidae452024+24%1968
Carolina WrenTroglodytidae372024+539%1968
Chipping SparrowPasserellidae312024-27%1968
Purple MartinHirundinidae25202418×1973
Carolina ChickadeeParidae242024+314%1968
Blue GrosbeakCardinalidae212024+622%1968
Red-winged BlackbirdIcteridae182024-12%1968
Tufted TitmouseParidae182024+17%1968
Turkey VultureCathartidae17202414×1968
Mourning DoveColumbidae162024+61%1968
Red-eyed VireoVireonidae152024+110%1968
Common YellowthroatParulidae152024-21%1968
Brown-headed CowbirdIcteridae142024-2%1968
Rock PigeonColumbidae132024-61%1968
Barn SwallowHirundinidae132024-67%1968
Blue-gray GnatcatcherPolioptilidae132024+133%1968
American RobinTurdidae132024-53%1968
OvenbirdParulidae122024+7%1968
Northern CardinalCardinalidae112024-50%1968
White-eyed VireoVireonidae112024+30%1968
Eastern BluebirdTurdidae112024+483%1976
American GoldfinchFringillidae102024+69%1968
Grasshopper SparrowPasserellidae102024+500%1968
Northern MockingbirdMimidae102024+100%1968
Laughing GullLaridae92024-52%1968
Great Crested FlycatcherTyrannidae82024-18%1968
Pine WarblerParulidae82024+47%1968
Eastern Wood-PeweeTyrannidae72024-42%1968
Field SparrowPasserellidae72024-46%1968
Herring GullLaridae72023+50%1972
KilldeerCharadriidae72024+122%1972
Tree SwallowHirundinidae62024+114%1995
Cedar WaxwingBombycillidae62021+40%1988
Summer TanagerCardinalidae52024+200%1968
Downy WoodpeckerPicidae42024-43%1968
Blue JayCorvidae42022-31%1968

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