BirdAnalyst
BBS Route · Virginia · BCR 29

Gladys Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 29 survey years, still active.

102Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
2Observers

Bird Species Found on Virginia Gladys

Top 40 of 102 species by most recent count. Each links to its species trend.

Species recorded on the Gladys 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
Mourning DoveColumbidae822025+84%1998
American CrowCorvidae812025+61%1998
European StarlingSturnidae642025+17%1998
Northern MockingbirdMimidae412025+9%1998
Indigo BuntingCardinalidae362025-6%1998
Northern CardinalCardinalidae322025-10%1998
Carolina WrenTroglodytidae292025+39%1998
Red-eyed VireoVireonidae232025-38%1998
Eastern BluebirdTurdidae232025+0%1998
Chipping SparrowPasserellidae222025-13%1998
Cliff SwallowHirundinidae182025+88%1998
Red-bellied WoodpeckerPicidae162025+77%1998
Blue GrosbeakCardinalidae152025+31%1998
Eastern MeadowlarkIcteridae142025-46%1998
Common GrackleIcteridae142025-76%1998
American GoldfinchFringillidae122025+50%1999
Barn SwallowHirundinidae112025-48%1998
Yellow-breasted ChatIcteriidae112025+250%1998
Northern BobwhiteOdontophoridae102025-49%1998
Blue JayCorvidae102025-7%1998
House SparrowPasseridae102025+21%1998
Tufted TitmouseParidae102025-30%1998
American RobinTurdidae102025-68%1998
KilldeerCharadriidae92024+57%1998
Eastern PhoebeTyrannidae62025+83%1998
Brown ThrasherMimidae62025-35%1998
White-eyed VireoVireonidae62025+360%2002
Northern Rough-winged SwallowHirundinidae62024+33%2015
Rock PigeonColumbidae52025-15%1998
Pileated WoodpeckerPicidae52025+171%1998
Field SparrowPasserellidae52025-50%1998
Chimney SwiftApodidae52025-39%1999
Common YellowthroatParulidae52025-54%1999
Yellow-billed CuckooCuculidae42025+111%1998
Orchard OrioleIcteridae42025+0%1998
House FinchFringillidae42025-82%1998
Turkey VultureCathartidae32025-16%1998
Eastern Wood-PeweeTyrannidae32025-36%1998
Wood ThrushTurdidae32025-47%1998
Red-winged BlackbirdIcteridae32025-25%2000

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