BirdAnalyst
BBS Route · Maryland · BCR 28

Piney Grove Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 30 survey years, still active.

100Species 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 →
30Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1995–2025Span
1Observers

Bird Species Found on Maryland Piney Grove

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Piney Grove 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 VireoVireonidae932025+139%1997
Chipping SparrowPasserellidae512025+26%1997
Wood ThrushTurdidae362025+57%1997
Eastern TowheePasserellidae342025+52%1997
Indigo BuntingCardinalidae342025-32%1997
Eastern Wood-PeweeTyrannidae292025+71%1997
American CrowCorvidae282025-59%1997
Tufted TitmouseParidae272025+30%1997
Scarlet TanagerCardinalidae252025-8%1997
Northern CardinalCardinalidae232025+141%1997
Mourning DoveColumbidae192025+35%1997
European StarlingSturnidae182025+21%1997
Northern MockingbirdMimidae182025+37%1997
American RobinTurdidae182025-37%1997
Red-bellied WoodpeckerPicidae172025+48%1997
Worm-eating WarblerParulidae162025+67%1997
Carolina WrenTroglodytidae162025+600%1998
OvenbirdParulidae152025+170%1997
Gray CatbirdMimidae142025+83%1997
White-breasted NuthatchSittidae142025+140%1997
American GoldfinchFringillidae132025+39%1997
Barn SwallowHirundinidae112025-9%1997
House FinchFringillidae102025-44%1997
Cedar WaxwingBombycillidae102025-54%1997
Pine WarblerParulidae82025+0%1997
Carolina ChickadeeParidae72025+163%2005
Acadian FlycatcherTyrannidae62025+50%1997
Brown-headed CowbirdIcteridae62025+38%1997
Red-winged BlackbirdIcteridae62025-41%1997
Blue-gray GnatcatcherPolioptilidae62025-41%1997
Downy WoodpeckerPicidae52025-31%1997
Common GrackleIcteridae52025-43%1997
Field SparrowPasserellidae52025-62%1997
Yellow-throated VireoVireonidae52025+31%1997
Brown ThrasherMimidae52025+50%1997
Tree SwallowHirundinidae52025+29%1999
Eastern PhoebeTyrannidae42025-19%1997
Blue JayCorvidae42025-66%1997
Eastern MeadowlarkIcteridae42025-14%1997
Pileated WoodpeckerPicidae32025+64%1997

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.