BirdAnalyst
BBS Route · Alabama · BCR 27

Harrell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 55 survey years, still active.

101Species 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2024Span
3Observers

Bird Species Found on Alabama Harrell

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Harrell 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
Northern MockingbirdMimidae242024-61%1970
Northern CardinalCardinalidae232024-65%1970
American CrowCorvidae102024-80%1970
Eastern MeadowlarkIcteridae92024-83%1970
Barn SwallowHirundinidae92023+171%1975
European StarlingSturnidae72018+11%1970
White-eyed VireoVireonidae62024+12%1974
Carolina WrenTroglodytidae62024-59%1970
Black VultureCathartidae62021+333%1974
Brown-headed NuthatchSittidae62013+0%1991
Western Cattle-EgretArdeidae52022-16%1970
KilldeerCharadriidae52021-72%1971
Purple MartinHirundinidae52019-63%1970
Yellow-breasted ChatIcteriidae52024+7%1970
Tufted TitmouseParidae52024-13%1970
Canada GooseAnatidae52022+259%2016
Red-bellied WoodpeckerPicidae42024-7%1972
Great Crested FlycatcherTyrannidae42024-44%1970
Rock PigeonColumbidae31992-90%1970
Mourning DoveColumbidae32024-96%1970
Red-winged BlackbirdIcteridae32024-96%1970
Eastern TowheePasserellidae32023-67%1970
Indigo BuntingCardinalidae32024-5%1971
Northern ParulaParulidae32019-53%1979
Kentucky WarblerParulidae32007-53%1974
House SparrowPasseridae32008-89%1970
Wood ThrushTurdidae32024-77%1970
Eastern BluebirdTurdidae32024+133%1978
Little Blue HeronArdeidae22007-74%1971
Northern BobwhiteOdontophoridae22022-98%1970
Yellow-billed CuckooCuculidae22024-82%1970
Blue JayCorvidae22024-84%1970
Fish CrowCorvidae22012+227%1985
Common GrackleIcteridae22024-93%1970
Turkey VultureCathartidae22012+0%1974
Eurasian Collared-DoveColumbidae22024-46%2000
White IbisThreskiornithidae12011+275%1971
Green HeronArdeidae12013-25%1973
Yellow-crowned Night HeronArdeidae11996+0%1968
Belted KingfisherAlcedinidae12014+67%1980

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