BirdAnalyst
BBS Route · Ohio · BCR 28

Tar Hollow Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 31 survey years, still active.

102Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2024Span
2Observers

Bird Species Found on Ohio Tar Hollow

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

Species recorded on the Tar Hollow 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 VireoVireonidae1452024+40%1994
OvenbirdParulidae762024-3%1994
Wood ThrushTurdidae762024+103%1994
Acadian FlycatcherTyrannidae562024+9%1994
American RobinTurdidae482024+90%1994
Hooded WarblerParulidae472024+85%1994
Northern CardinalCardinalidae392024+35%1994
Carolina WrenTroglodytidae342024+250%1995
White-breasted NuthatchSittidae332024+323%1994
Scarlet TanagerCardinalidae322024-12%1994
American RedstartParulidae302024+98%1994
Kentucky WarblerParulidae282024+97%1994
American CrowCorvidae272024-23%1994
Eastern TowheePasserellidae272024+124%1994
Mourning DoveColumbidae252024+65%1994
Downy WoodpeckerPicidae162024+119%1994
Chipping SparrowPasserellidae152024-7%1994
Song SparrowPasserellidae152024+52%1994
Indigo BuntingCardinalidae152024-71%1994
Common YellowthroatParulidae152024+8%1994
American GoldfinchFringillidae142024+4%1994
Tufted TitmouseParidae142024-37%1994
Pileated WoodpeckerPicidae122024+32%1994
Carolina ChickadeeParidae122024-27%1994
Purple MartinHirundinidae122024+189%2009
Eastern Wood-PeweeTyrannidae102024+24%1994
Blue-gray GnatcatcherPolioptilidae102024-60%1994
Worm-eating WarblerParulidae92024+50%1994
Yellow-throated WarblerParulidae92024-16%1994
Rose-breasted GrosbeakCardinalidae92024+300%1998
Red-bellied WoodpeckerPicidae82024+48%1994
Eastern PhoebeTyrannidae82024+21%1994
Gray CatbirdMimidae82024-15%1994
Eastern BluebirdTurdidae82024+100%1994
Canada GooseAnatidae82017+700%1996
Blue JayCorvidae72024+25%1994
Brown-headed CowbirdIcteridae72024-50%1994
White-eyed VireoVireonidae72024+5%1994
Cerulean WarblerParulidae72024-28%1994
Common GrackleIcteridae52024+91%1994

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