BirdAnalyst
Species · BCR 31 · BBS 2025 Release · 1966–2024

Herring Gull In Peninsular Florida

All regionsPeninsular FloridaWetland birds

Herring Gull in Peninsular Florida has surged: up 167% on the route-weighted index since 2009.

+167%Since 2009TrendPercent 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 →
5Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Herring Gull has surged in Peninsular Florida: up 167% on the route-weighted index since 2009.

Routes In Peninsular Florida

Routes recording Herring Gull in Peninsular Florida.
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 →
Vero BeachFLORIDA82013
Pleasant Grove 2FLORIDA42022
HomesteadFLORIDA22015
St AugustineFLORIDA11969
ScottsmoorFLORIDA12009

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.