BirdAnalyst
BBS Route · Florida · BCR 31

Alva Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 74 species recorded across 31 survey years, no longer active.

74Species 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 →
1987–2023Span
3Observers

Bird Species Found on Florida Alva

Top 40 of 74 species by most recent count. Each links to its species trend.

Species recorded on the Alva 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
Great EgretArdeidae332023+147%1989
Northern CardinalCardinalidae302023+29%1989
Northern MockingbirdMimidae262023-17%1989
Mourning DoveColumbidae242023+47%1989
Eastern MeadowlarkIcteridae232023-53%1989
Black VultureCathartidae182017+400%1990
Common GrackleIcteridae152023-56%1989
Western Cattle-EgretArdeidae142023-41%1989
American CrowCorvidae142023-27%1989
Glossy IbisThreskiornithidae13202313×2012
White IbisThreskiornithidae112023+133%1992
Boat-tailed GrackleIcteridae112023-59%1989
Red-winged BlackbirdIcteridae102023-75%1989
Chuck-will's-widowCaprimulgidae72023+30%1989
Carolina WrenTroglodytidae72023-55%1989
Sandhill CraneGruidae62023+200%1989
Common Ground DoveColumbidae62017+100%1990
Red-bellied WoodpeckerPicidae62023+8%1989
Great Crested FlycatcherTyrannidae52023+0%1989
Blue JayCorvidae52023+19%1989
Black-bellied Whistling-DuckAnatidae52023-44%2010
Snowy EgretArdeidae42023+257%1995
KilldeerCharadriidae42012+20%1990
Fish CrowCorvidae42023-38%1989
Mottled DuckAnatidae32023+50%1992
Little Blue HeronArdeidae32023-40%1990
Rock PigeonColumbidae32001+0%1987
Turkey VultureCathartidae32023-58%1989
Red-shouldered HawkAccipitridae32023+333%1989
Purple MartinHirundinidae32023+11%1991
White-eyed VireoVireonidae32023+79%1989
Tufted TitmouseParidae32023-14%1989
Yellow-crowned Night HeronArdeidae32005+20%1991
Great Horned OwlStrigidae31993n/an/a
Eurasian Collared-DoveColumbidae32023-13%2002
Tricolored HeronArdeidae22023-43%1990
Pileated WoodpeckerPicidae22015+0%1989
European StarlingSturnidae22014-30%1990
Loggerhead ShrikeLaniidae22023-11%1989
Pine WarblerParulidae22023-56%1989

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