BirdAnalyst
BBS Route · Alabama · BCR 27

Harrell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 56 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 →
56Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
4Observers

Bird Species Found on Alabama Harrell

Top 40 of 102 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
Barn SwallowHirundinidae75202513×1975
Western Cattle-EgretArdeidae742025+92%1970
Northern MockingbirdMimidae562025-47%1970
American CrowCorvidae492025-34%1970
Northern CardinalCardinalidae472025-50%1970
Carolina WrenTroglodytidae462025+20%1970
Mourning DoveColumbidae442025-60%1970
Purple MartinHirundinidae432025+16%1970
Indigo BuntingCardinalidae412025+185%1971
Great EgretArdeidae312025+700%1975
White-eyed VireoVireonidae292025+147%1974
Blue GrosbeakCardinalidae282025-9%1970
Eastern MeadowlarkIcteridae272025-71%1970
Common GrackleIcteridae252025-78%1970
Northern Rough-winged SwallowHirundinidae252025+93%1976
Carolina ChickadeeParidae242025+100%1970
Blue-gray GnatcatcherPolioptilidae242025+225%1976
Blue JayCorvidae202025-83%1970
Red-bellied WoodpeckerPicidae172025+71%1972
Orchard OrioleIcteridae172025+19%1971
Turkey VultureCathartidae172025+175%1974
Eastern BluebirdTurdidae172025+189%1978
Tufted TitmouseParidae162025+38%1970
Yellow-breasted ChatIcteriidae142025+40%1970
Eastern KingbirdTyrannidae132025-23%1970
Northern ParulaParulidae132025+20%1979
Wood ThrushTurdidae132025-31%1970
Canada GooseAnatidae122025+35%2016
Yellow-billed CuckooCuculidae112025-46%1970
Great Blue HeronArdeidae112025+333%1975
Chimney SwiftApodidae102025-73%1970
Eurasian Collared-DoveColumbidae102025+36%2000
Yellow-throated VireoVireonidae92025+175%1982
Pine WarblerParulidae92025+200%1974
Cliff SwallowHirundinidae82025n/an/a
Great Crested FlycatcherTyrannidae72025-25%1970
Acadian FlycatcherTyrannidae72025+29%1982
Red-winged BlackbirdIcteridae72025-93%1970
Summer TanagerCardinalidae72025-36%1971
Eastern PhoebeTyrannidae72025+80%1986

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