BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Brunnerville 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 12 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 →
12Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2010–2024Span
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 StarlingSturnidae2122024+273%2012
Common GrackleIcteridae1092024+7%2012
Canada GooseAnatidae1072024+4%2012
House SparrowPasseridae1012024+27%2012
American RobinTurdidae842024-35%2012
Mourning DoveColumbidae482024+60%2012
American GoldfinchFringillidae422024+75%2012
MallardAnatidae312021+493%2012
Northern CardinalCardinalidae312024+24%2012
Tree SwallowHirundinidae292024+44%2012
Red-winged BlackbirdIcteridae252024-49%2012
Barn SwallowHirundinidae222024-15%2012
House FinchFringillidae202024+114%2012
American CrowCorvidae192024-68%2012
Cedar WaxwingBombycillidae192024-42%2012
Gray CatbirdMimidae192024+20%2012
Chipping SparrowPasserellidae182024-24%2012
Song SparrowPasserellidae182024+33%2012
Blue JayCorvidae172024+42%2012
Turkey VultureCathartidae122024+33%2012
Common YellowthroatParulidae112024-3%2012
Brown-headed CowbirdIcteridae92024-61%2012
Indigo BuntingCardinalidae92024-5%2012
Carolina WrenTroglodytidae92024+12%2012
Northern House WrenTroglodytidae82024-14%2012
Red-bellied WoodpeckerPicidae72024-13%2012
Wood DuckAnatidae62019+57%2012
Downy WoodpeckerPicidae52021-27%2012
Eastern Wood-PeweeTyrannidae52024+7%2012
Purple MartinHirundinidae52024+132%2012
Wood ThrushTurdidae52024+74%2012
Rock PigeonColumbidae42024+64%2012
Red-tailed HawkAccipitridae42024-36%2012
Yellow WarblerParulidae42024-53%2012
Northern MockingbirdMimidae42024-28%2012
Tufted TitmouseParidae42024-82%2012
Eastern BluebirdTurdidae42024+29%2012
Eastern PhoebeTyrannidae42024+300%2013
Great Blue HeronArdeidae32024-47%2012
KilldeerCharadriidae32024-33%2012

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