BirdAnalyst
BBS Route · Mississippi · BCR 27

Duffee Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 88 species recorded across 16 survey years, still active.

88Species 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 →
16Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2008Span
4Observers

Bird Species Found on Mississippi Duffee

Top 40 of 88 species by most recent count. Each links to its species trend.

Species recorded on the Duffee 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 Rough-winged SwallowHirundinidae150200832×1975
Northern MockingbirdMimidae512008-13%1975
Northern CardinalCardinalidae492008+8%1975
Blue JayCorvidae372008-5%1975
American CrowCorvidae372008+138%1975
Indigo BuntingCardinalidae272008+68%1975
Wood ThrushTurdidae272008-28%1975
Tufted TitmouseParidae242008+139%1975
Mourning DoveColumbidae202008+24%1975
Common GrackleIcteridae162008-74%1975
Pine WarblerParulidae162007+155%1975
Carolina WrenTroglodytidae152008-66%1975
Carolina ChickadeeParidae152008+182%1975
Chipping SparrowPasserellidae142008+156%1975
Eastern TowheePasserellidae142008+7%1975
Common YellowthroatParulidae142008+4%1975
Yellow-breasted ChatIcteriidae142008-21%1975
Turkey VultureCathartidae132007+70%1975
Yellow-billed CuckooCuculidae112008-44%1975
White-eyed VireoVireonidae112008-29%1975
Chimney SwiftApodidae102008+4%1975
Eastern KingbirdTyrannidae72008-53%1975
Red-winged BlackbirdIcteridae72008-87%1975
Eastern BluebirdTurdidae72008+150%1975
Red-eyed VireoVireonidae72008+33%1977
Western Cattle-EgretArdeidae71997-83%1979
Eastern Wood-PeweeTyrannidae62008-8%1975
Summer TanagerCardinalidae62008-59%1975
Purple MartinHirundinidae62008+48%1975
Rock PigeonColumbidae62001n/an/a
Northern BobwhiteOdontophoridae52008-78%1975
Red-bellied WoodpeckerPicidae52008-17%1975
Great Crested FlycatcherTyrannidae52008+18%1975
Brown-headed CowbirdIcteridae52008-31%1975
Pileated WoodpeckerPicidae52008+167%1977
Yellow-throated WarblerParulidae51997+200%1976
Great EgretArdeidae52008-27%2000
Green HeronArdeidae42001-30%1975
Downy WoodpeckerPicidae42008+89%1975
Orchard OrioleIcteridae42008-77%1975

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