BirdAnalyst
BBS Route · Maryland · BCR 30

Island Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 98 species recorded across 31 survey years, still active.

98Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1991–2024Span
5Observers

Bird Species Found on Maryland Island Creek

Top 40 of 98 species by most recent count. Each links to its species trend.

Species recorded on the Island Creek 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
Northern CardinalCardinalidae1252024+157%1993
Carolina WrenTroglodytidae1092024+114%1993
Chipping SparrowPasserellidae862024+175%1993
Tufted TitmouseParidae782024+279%1993
Red-eyed VireoVireonidae772024+20%1993
Acadian FlycatcherTyrannidae672024+232%1993
American CrowCorvidae642024+28%1993
European StarlingSturnidae552024+77%1993
House FinchFringillidae372024+33%1993
Chimney SwiftApodidae362024+194%1993
Eastern Wood-PeweeTyrannidae332024+114%1993
Indigo BuntingCardinalidae332024+16%1993
Eastern BluebirdTurdidae332024+233%1993
Carolina ChickadeeParidae322024+115%1993
Common GrackleIcteridae292024+7%1993
Red-bellied WoodpeckerPicidae282024+61%1993
Blue-gray GnatcatcherPolioptilidae28202411×1993
Brown-headed CowbirdIcteridae272024+137%1993
American GoldfinchFringillidae272024+338%1993
Northern MockingbirdMimidae242024+22%1993
White-breasted NuthatchSittidae232024+356%2008
American RobinTurdidae192024-61%1993
Mourning DoveColumbidae182024-3%1993
Northern ParulaParulidae182024+107%1993
Yellow-throated WarblerParulidae16202411×2011
OvenbirdParulidae152024+23%1993
Downy WoodpeckerPicidae142024+200%1993
Pine WarblerParulidae132024-43%1993
Wood ThrushTurdidae132024-55%1993
Blue JayCorvidae122024-11%1993
Cedar WaxwingBombycillidae122024+231%1993
Red-winged BlackbirdIcteridae112024+85%1993
Summer TanagerCardinalidae102024+267%1993
Great Crested FlycatcherTyrannidae92024+563%1993
Blue GrosbeakCardinalidae92024+147%1993
Pileated WoodpeckerPicidae82024+93%1994
Scarlet TanagerCardinalidae82024-45%1993
House SparrowPasseridae82024-23%1993
Common YellowthroatParulidae72024-31%1993
Brown ThrasherMimidae72024+250%1993

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