BirdAnalyst
Species · BCR 24 · BBS 2025 Release · 1966–2024

Mallard In Central Hardwoods

All regionsCentral HardwoodsWaterfowl

Mallard in Central Hardwoods has surged: up 140% on the route-weighted index since 1970.

+140%Since 1970
87Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Mallard has surged in Central Hardwoods: up 140% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Mallard in Central Hardwoods is projected to rise about 110% by 2029 — from 0.17 in 2024 to a central estimate of 0.35 (95% range 0.00–0.71). A 5-year backtest shows a typical error of ±78.3%, with 100% of held-out values landing inside the 95% band.

+110%Change by 2029
0.35Projected 2029 index
0.00–0.7195% range
±78.3%Backtest error
19672029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.340.000.71
20260.340.000.71
20270.340.000.71
20280.350.000.71
20290.350.000.71

Routes In Central Hardwoods

Routes recording Mallard in Central Hardwoods.
Cedar GroveKENTUCKY202023
BrazilINDIANA152024
Valhermoso SpgsALABAMA82008
PinevilleMISSOURI72004
Beaverdam LkILLINOIS61998
HodgenvilleKENTUCKY62003
GlenTENNESSEE62019
RupertARKANSAS51990
BirdsILLINOIS52022
MillerMISSOURI52018
CampbellsvilleTENNESSEE52006
Wheeler DamALABAMA42023
Sewell ShopKENTUCKY42004
TrianaALABAMA32008
CantonKENTUCKY32010
DixieKENTUCKY31973
PlumKENTUCKY32016
ReedsMISSOURI32006
HaydenMISSOURI32008
DiamondMISSOURI32015
SanduskyILLINOIS21993
PimentoINDIANA22022
SpencerINDIANA22006
Clear SpringINDIANA22019
CorydonINDIANA22006

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