BBS Route · Maryland · BCR 29

Pleasant Val Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 59 survey years, still active.

Bird Species Found on Maryland Pleasant Val

Top 40 of 102 species by most recent count. Each links to its species trend.

Species recorded on the Pleasant Val 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 RobinTurdidae602025+54%1968
Northern CardinalCardinalidae522025+806%1968
Gray CatbirdMimidae512025+102%1968
House SparrowPasseridae502025-62%1968
Red-winged BlackbirdIcteridae452025-55%1968
Mourning DoveColumbidae362025+56%1968
Barn SwallowHirundinidae332025-4%1968
House FinchFringillidae32202511×1984
American CrowCorvidae302025-51%1968
European StarlingSturnidae302025-84%1968
Song SparrowPasserellidae252025-16%1968
Red-bellied WoodpeckerPicidae202025+500%1968
Carolina WrenTroglodytidae182025+820%1972
Black VultureCathartidae172022+400%2012
Northern MockingbirdMimidae162025+51%1968
Northern House WrenTroglodytidae162025-26%1968
Chipping SparrowPasserellidae152025+77%1968
Blue JayCorvidae142025+4%1968
American GoldfinchFringillidae142025-31%1968
Canada GooseAnatidae142025+77%1992
Eastern Wood-PeweeTyrannidae132025+218%1968
Great Crested FlycatcherTyrannidae102025+267%1969
Common GrackleIcteridae102025-95%1968
Tufted TitmouseParidae72025+21%1968
Red-eyed VireoVireonidae72025+100%1971
Eastern BluebirdTurdidae72025+233%1982
Purple MartinHirundinidae62025+157%1972
Baltimore OrioleIcteridae52025-31%1968
Eastern TowheePasserellidae52024-70%1968
Cedar WaxwingBombycillidae52023-15%1986
Rock PigeonColumbidae42023-95%1968
Indigo BuntingCardinalidae42025-51%1968
Carolina ChickadeeParidae42025-40%1970
Willow FlycatcherTyrannidae42025+175%1976
Grasshopper SparrowPasserellidae32019-91%1968
Common YellowthroatParulidae32025+9%1968
Yellow WarblerParulidae32025+167%1971
Red-headed WoodpeckerPicidae32024+67%1998
Common RavenCorvidae32019n/an/a
Green HeronArdeidae22018-33%1972

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