BirdAnalyst
BBS Route · Virginia · BCR 28

Dryden Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 77 species recorded across 12 survey years, still active.

77Species 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 →
12Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1991–2025Span
3Observers

Bird Species Found on Virginia Dryden

Top 40 of 77 species by most recent count. Each links to its species trend.

Species recorded on the Dryden 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
American CrowCorvidae422025-24%1993
Song SparrowPasserellidae422025-19%1993
Northern CardinalCardinalidae362025-39%1993
Mourning DoveColumbidae212025-21%1993
Red-eyed VireoVireonidae202025-48%1993
Carolina WrenTroglodytidae202025+54%1993
Eastern TowheePasserellidae172025-25%1993
Wood ThrushTurdidae172025+79%1993
Indigo BuntingCardinalidae142025-82%1993
Field SparrowPasserellidae122025-47%1993
American RobinTurdidae122025-49%1993
Blue JayCorvidae112025-22%1993
Chipping SparrowPasserellidae102025-21%1993
Turkey VultureCathartidae92025+220%1993
Tufted TitmouseParidae92025-19%1993
Eastern BluebirdTurdidae92025-17%1993
Northern ParulaParulidae82025+267%1997
Red-winged BlackbirdIcteridae72025-52%1993
American GoldfinchFringillidae72025-60%1993
European StarlingSturnidae62025-8%1993
Hooded WarblerParulidae61998+127%1994
Eastern PhoebeTyrannidae52025+114%1993
Eastern Wood-PeweeTyrannidae52025+0%1993
Common GrackleIcteridae52025-73%1993
Northern MockingbirdMimidae52025+63%1993
Brown ThrasherMimidae52025-10%1993
Blue-gray GnatcatcherPolioptilidae52025-69%1993
Scarlet TanagerCardinalidae52024-56%1994
Eastern KingbirdTyrannidae42025-36%1994
Cedar WaxwingBombycillidae42005+14%1993
Carolina ChickadeeParidae42025-77%1993
Northern BobwhiteOdontophoridae31999-73%1993
Yellow-billed CuckooCuculidae31999+50%1993
Red-bellied WoodpeckerPicidae32025+20%1993
Chimney SwiftApodidae32025-5%1993
Ruby-throated HummingbirdTrochilidae31999+33%1994
Acadian FlycatcherTyrannidae32025+117%1993
Northern Rough-winged SwallowHirundinidae32025+36%1994
White-eyed VireoVireonidae32025-58%1993
Prairie WarblerParulidae31999-33%1993

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