BirdAnalyst
BBS Route · Maryland · BCR 29

Ijamsville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 110 species recorded across 37 survey years, still active.

110Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2024Span
3Observers

Bird Species Found on Maryland Ijamsville

Top 40 of 110 species by most recent count. Each links to its species trend.

Species recorded on the Ijamsville 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
European StarlingSturnidae1072024+64%1988
Northern CardinalCardinalidae842024+256%1988
Chipping SparrowPasserellidae772024+190%1988
Carolina WrenTroglodytidae622024+506%1988
American RobinTurdidae622024+16%1988
Tufted TitmouseParidae612024+160%1988
Northern MockingbirdMimidae572024+28%1988
American CrowCorvidae562024-9%1988
Mourning DoveColumbidae502024+49%1988
Red-bellied WoodpeckerPicidae502024+140%1988
House SparrowPasseridae442024-17%1988
Indigo BuntingCardinalidae382024+12%1988
American GoldfinchFringillidae372024+80%1988
Carolina ChickadeeParidae372024+258%1988
Gray CatbirdMimidae352024+150%1988
Red-winged BlackbirdIcteridae342024-3%1988
House FinchFringillidae342024+45%1988
Song SparrowPasserellidae322024+59%1988
Red-eyed VireoVireonidae292024+160%1988
Eastern KingbirdTyrannidae282024+358%1988
Chimney SwiftApodidae272024+33%1988
Eastern BluebirdTurdidae272024+307%1988
Blue JayCorvidae262024+90%1988
Eastern Wood-PeweeTyrannidae222024+38%1988
Cedar WaxwingBombycillidae21202412×1988
White-breasted NuthatchSittidae202024+375%1991
Barn SwallowHirundinidae192024+11%1988
Purple MartinHirundinidae182024+440%2010
Brown-headed CowbirdIcteridae172024+135%1988
Northern House WrenTroglodytidae172024+69%1988
Field SparrowPasserellidae162024-40%1988
Blue-gray GnatcatcherPolioptilidae162024+475%1988
Fish CrowCorvidae152024+400%1988
Orchard OrioleIcteridae152024+700%1989
Downy WoodpeckerPicidae142024+224%1988
Common GrackleIcteridae142024-69%1988
Wood ThrushTurdidae102024-46%1988
Common YellowthroatParulidae92024+108%1988
Canada GooseAnatidae92024+64%1993
Great Crested FlycatcherTyrannidae82024+188%1988

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