BirdAnalyst
Species · BCR 3 · BBS 2025 Release · 1966–2024

Mallard In BCR 3

All regionsBCR 3Waterfowl

Mallard in BCR 3 has edged up: up 10% on the route-weighted index since 2000.

+10%Since 2000TrendPercent 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 →
4Routes 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 →

No notable trend signals for Mallard in BCR 3. See the full index history below.

Routes In BCR 3

Routes recording Mallard in BCR 3.
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 →
UtqiagvikALASKA22023
Dietrich CmpALASKA22023
Galbraith L.ALASKA12024
Happy ValleyALASKA12019

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