BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Roulette 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 78 species recorded across 3 survey years, still active.

78Species 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 →
2022–2024Span
1Observers

Bird Species Found on Pennsylvania Roulette 2

Top 40 of 78 species by most recent count. Each links to its species trend.

Species recorded on the Roulette 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
American RobinTurdidae882024+66%2022
Red-eyed VireoVireonidae742024-11%2022
Cedar WaxwingBombycillidae732024+92%2022
OvenbirdParulidae452024-4%2022
European StarlingSturnidae442024+57%2022
Black-capped ChickadeeParidae432024+16%2022
American CrowCorvidae332024-25%2022
Song SparrowPasserellidae332024+18%2022
Common YellowthroatParulidae282024+17%2022
Yellow WarblerParulidae242024+100%2022
American GoldfinchFringillidae222024+47%2022
Indigo BuntingCardinalidae222024-12%2022
Eastern PhoebeTyrannidae202024+54%2022
Mourning DoveColumbidae192024+0%2022
Chipping SparrowPasserellidae192024-21%2022
Red-winged BlackbirdIcteridae182024-33%2022
Chestnut-sided WarblerParulidae172024-19%2022
Eastern TowheePasserellidae162024+23%2022
Black-and-white WarblerParulidae162024+300%2022
Hooded WarblerParulidae16202416×2022
Gray CatbirdMimidae162024-33%2022
Blackburnian WarblerParulidae152024+0%2022
Black-throated Green WarblerParulidae152024+7%2022
Wood ThrushTurdidae152024+88%2022
Yellow-bellied SapsuckerPicidae112024+10%2022
Blue JayCorvidae112024-52%2022
Common GrackleIcteridae112024+83%2022
Northern House WrenTroglodytidae112024-27%2022
VeeryTurdidae112024-15%2022
Common RavenCorvidae102024+150%2022
White-breasted NuthatchSittidae102024+233%2022
Field SparrowPasserellidae92024+80%2022
Northern CardinalCardinalidae92024-44%2022
American RedstartParulidae92024+29%2022
Scarlet TanagerCardinalidae82024+0%2022
Canada GooseAnatidae72024+40%2022
Alder FlycatcherTyrannidae72023+250%2022
BobolinkIcteridae72024-13%2022
Rose-breasted GrosbeakCardinalidae72024+250%2022
Rock PigeonColumbidae72024n/an/a

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