BirdAnalyst
BBS Route · Maryland · BCR 29

Van Bibber Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 105 species recorded across 45 survey years, no longer active.

105Species 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 →
45Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2013Span
10Observers

Bird Species Found on Maryland Van Bibber

Top 40 of 105 species by most recent count. Each links to its species trend.

Species recorded on the Van Bibber 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 RobinTurdidae492013-23%1968
Northern CardinalCardinalidae432013+21%1968
Chipping SparrowPasserellidae412013+10%1968
European StarlingSturnidae352013-17%1968
Gray CatbirdMimidae292013+82%1968
American CrowCorvidae242013+11%1968
Carolina WrenTroglodytidae212013+50%1968
Red-bellied WoodpeckerPicidae202013+43%1968
Mourning DoveColumbidae182013+41%1968
Blue JayCorvidae172013+96%1968
Tufted TitmouseParidae172013-21%1968
Wood ThrushTurdidae172013-41%1968
Indigo BuntingCardinalidae152013-61%1968
Barn SwallowHirundinidae152013-42%1968
Carolina ChickadeeParidae152013+3%1968
Northern MockingbirdMimidae142013-52%1968
Common GrackleIcteridae132013-91%1968
American GoldfinchFringillidae112013+7%1968
Northern House WrenTroglodytidae112013+35%1968
House FinchFringillidae112013+182%1984
Eastern Wood-PeweeTyrannidae102013-15%1968
Red-eyed VireoVireonidae92013+2%1968
Cedar WaxwingBombycillidae92013+100%1984
Eastern BluebirdTurdidae92013+400%1987
Purple MartinHirundinidae82013+175%1968
White-breasted NuthatchSittidae82013+575%1986
Tree SwallowHirundinidae82013+280%1993
Red-winged BlackbirdIcteridae72013-77%1968
OvenbirdParulidae72013+36%1968
Song SparrowPasserellidae62013+7%1968
Blue-gray GnatcatcherPolioptilidae62013+44%1970
Downy WoodpeckerPicidae52013+28%1968
Acadian FlycatcherTyrannidae52013+10%1968
Fish CrowCorvidae52013+100%1972
Brown-headed CowbirdIcteridae52013+44%1968
House SparrowPasseridae52013-75%1968
Canada GooseAnatidae52013-62%1993
Baltimore OrioleIcteridae42013+200%1969
MallardAnatidae42006+0%1981
Black VultureCathartidae42009+200%1998

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