BirdAnalyst
BBS Route · Virginia · BCR 30

Port Royal Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 33 survey years, still active.

101Species 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1977–2025Span
10Observers

Bird Species Found on Virginia Port Royal

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Port Royal 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
Red-eyed VireoVireonidae612025+59%1980
Northern CardinalCardinalidae552025+56%1980
Cliff SwallowHirundinidae52201913×2011
American CrowCorvidae492025+34%1980
Carolina WrenTroglodytidae392025+431%1980
American GoldfinchFringillidae292025+200%1986
Chipping SparrowPasserellidae272025+148%1980
Indigo BuntingCardinalidae262025-46%1980
Tufted TitmouseParidae252025+98%1980
Double-crested CormorantPhalacrocoracidae242019-52%2014
Mourning DoveColumbidae232025+2%1980
Acadian FlycatcherTyrannidae222025+175%1980
Eastern Wood-PeweeTyrannidae202025+100%1980
European StarlingSturnidae202025-46%1980
Red-bellied WoodpeckerPicidae162025+29%1980
Wood ThrushTurdidae142025-37%1980
Blue-gray GnatcatcherPolioptilidae132025+178%1980
Northern ParulaParulidae102025+38%1980
Northern MockingbirdMimidae102025-35%1980
Eastern BluebirdTurdidae102025+467%1980
OvenbirdParulidae92025+90%1980
Turkey VultureCathartidae82019-39%1991
Barn SwallowHirundinidae72025-72%1980
Carolina ChickadeeParidae72025-9%1980
Canada GooseAnatidae72019-35%2012
Blue JayCorvidae62025-53%1980
Brown-headed CowbirdIcteridae62025-53%1980
Scarlet TanagerCardinalidae62025-5%1980
Common YellowthroatParulidae62025+100%1980
Yellow-breasted ChatIcteriidae62025+0%1980
Brown ThrasherMimidae62025-16%1980
Black VultureCathartidae52025+286%1995
Chimney SwiftApodidae52025-8%1980
Common GrackleIcteridae52025-55%1980
Summer TanagerCardinalidae52025+88%1986
White-breasted NuthatchSittidae52025+375%1987
Cedar WaxwingBombycillidae52019+0%1993
Northern BobwhiteOdontophoridae42025-90%1980
Great Crested FlycatcherTyrannidae42025+67%1980
Eastern PhoebeTyrannidae42025+0%1980

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