BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Brunnerville 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 13 survey years, still active.

95Species 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 →
13Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2010–2025Span
3Observers

Bird Species Found on Pennsylvania Brunnerville 2

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Brunnerville 2 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 StarlingSturnidae1892025+268%2012
American RobinTurdidae962025-39%2012
House SparrowPasseridae782025+29%2012
Common GrackleIcteridae642025-28%2012
Purple MartinHirundinidae412025+209%2012
Red-winged BlackbirdIcteridae392025-34%2012
Rock PigeonColumbidae352025+24%2012
Song SparrowPasserellidae332025+30%2012
American GoldfinchFringillidae292025+122%2012
Northern CardinalCardinalidae272025+35%2012
Mourning DoveColumbidae262025+48%2012
Canada GooseAnatidae242025-13%2012
Blue JayCorvidae232025+96%2012
Chipping SparrowPasserellidae232025-29%2012
Tree SwallowHirundinidae172025+53%2012
Cedar WaxwingBombycillidae172025-28%2012
House FinchFringillidae162025+83%2012
Barn SwallowHirundinidae162025-27%2012
Gray CatbirdMimidae152025+1%2012
Northern House WrenTroglodytidae132025-29%2012
Carolina WrenTroglodytidae112025+20%2012
MallardAnatidae102025+360%2012
Red-bellied WoodpeckerPicidae102025-21%2012
Indigo BuntingCardinalidae102025-35%2012
Northern MockingbirdMimidae102025+0%2012
Chimney SwiftApodidae82025-26%2012
American CrowCorvidae82025-70%2012
Common YellowthroatParulidae82025-13%2012
Wood ThrushTurdidae82025+63%2012
Yellow WarblerParulidae72025-41%2012
Horned LarkAlaudidae62025-52%2012
Brown-headed CowbirdIcteridae62025-63%2012
Red-eyed VireoVireonidae62025-43%2012
KilldeerCharadriidae52025-13%2012
Baltimore OrioleIcteridae52025+100%2012
Tufted TitmouseParidae52025-74%2012
Eastern BluebirdTurdidae52025+7%2012
Red-tailed HawkAccipitridae42024-36%2012
Downy WoodpeckerPicidae42025-13%2012
Field SparrowPasserellidae42025+43%2012

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