BirdAnalyst
BBS Route · Virginia · BCR 30

Port Royal Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 32 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1977–2019Span
9Observers

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 VireoVireonidae622019+53%1980
Northern CardinalCardinalidae532019+42%1980
Cliff SwallowHirundinidae52201913×2011
Carolina WrenTroglodytidae492019+423%1980
Common GrackleIcteridae452019-41%1980
American CrowCorvidae322019+41%1980
Chipping SparrowPasserellidae252019+176%1980
Double-crested CormorantPhalacrocoracidae242019-52%2014
Mourning DoveColumbidae212019+10%1980
Black VultureCathartidae212019+271%1995
Tufted TitmouseParidae212019+174%1980
Eastern Wood-PeweeTyrannidae192019+94%1980
Acadian FlycatcherTyrannidae182019+163%1980
Blue GrosbeakCardinalidae182019+165%1980
Indigo BuntingCardinalidae182019-49%1980
Common YellowthroatParulidae162019+100%1980
European StarlingSturnidae152019-52%1980
OvenbirdParulidae152019+130%1980
Eastern BluebirdTurdidae152019+417%1980
Northern MockingbirdMimidae142019-28%1980
House FinchFringillidae142019+108%1989
Chimney SwiftApodidae132019+0%1980
Wood ThrushTurdidae132019-41%1980
Barn SwallowHirundinidae112019-74%1980
House SparrowPasseridae112019-84%1980
Red-bellied WoodpeckerPicidae92019+53%1980
Fish CrowCorvidae92019-5%1980
Brown-headed CowbirdIcteridae92019-57%1980
American RobinTurdidae92019-37%1980
OspreyPandionidae92019+400%1991
Turkey VultureCathartidae82019-39%1991
Great Crested FlycatcherTyrannidae82019+100%1980
White-eyed VireoVireonidae82019+75%1986
Blue-gray GnatcatcherPolioptilidae82019+256%1980
Blue JayCorvidae72019-28%1980
Red-winged BlackbirdIcteridae72019+8%1980
Summer TanagerCardinalidae72019+113%1986
Northern ParulaParulidae72019+25%1980
Carolina ChickadeeParidae72019-18%1980
Canada GooseAnatidae72019-35%2012

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