BirdAnalyst
BBS Route · Maryland · BCR 30

St. George'S Island Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 3 survey years, still active.

87Species 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 →
3Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2015–2017Span
1Observers

Bird Species Found on Maryland St. George'S Island

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the St. George'S Island 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
Great Blue HeronArdeidae1142017+192%2015
OspreyPandionidae572017-3%2015
American CrowCorvidae552017+22%2015
Northern CardinalCardinalidae492017+32%2015
European StarlingSturnidae452017-60%2015
Chipping SparrowPasserellidae402017+54%2015
House SparrowPasseridae352017+21%2015
House FinchFringillidae342017+113%2015
Mourning DoveColumbidae272017+4%2015
Carolina ChickadeeParidae272017+69%2015
Northern MockingbirdMimidae262017+13%2015
Carolina WrenTroglodytidae262017+53%2015
Double-crested CormorantPhalacrocoracidae252017+400%2015
Blue GrosbeakCardinalidae252017+79%2015
Tufted TitmouseParidae252017+0%2015
Purple MartinHirundinidae232017+21%2015
Indigo BuntingCardinalidae212017+50%2015
American RobinTurdidae192017-46%2015
Turkey VultureCathartidae182017+13%2015
Red-winged BlackbirdIcteridae172017+13%2015
Laughing GullLaridae162017-62%2015
Blue JayCorvidae162017-50%2015
Brown-headed CowbirdIcteridae162017+14%2015
Common GrackleIcteridae162017-83%2015
Herring GullLaridae132017+44%2015
Red-eyed VireoVireonidae132017+44%2015
Eastern BluebirdTurdidae122017+200%2016
Red-bellied WoodpeckerPicidae102017+150%2015
Fish CrowCorvidae102017+100%2015
Pine WarblerParulidae102017+900%2015
Acadian FlycatcherTyrannidae92017+125%2015
Cedar WaxwingBombycillidae92017+29%2015
Canada GooseAnatidae82017-33%2015
Black VultureCathartidae82017+0%2015
Great Crested FlycatcherTyrannidae82017+14%2015
American GoldfinchFringillidae82017+167%2015
Summer TanagerCardinalidae72017+40%2015
MallardAnatidae62017+500%2015
OvenbirdParulidae62017+200%2015
Common YellowthroatParulidae62017+500%2015

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