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Species · BCR 12 · BBS 2025 Release · 1966–2024

Northern Mockingbird In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionGeneralists

Northern Mockingbird in Boreal Hardwood Transition has edged down: down 21% on the route-weighted index since 1987.

-21%Since 1987TrendPercent 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 →
12Routes 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 →
17YearsYears 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 Northern Mockingbird in Boreal Hardwood Transition. See the full index history below.

Routes In Boreal Hardwood Transition

Routes recording Northern Mockingbird in Boreal Hardwood Transition.
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 →
RiggsvilleMICHIGAN22018
BootjackMICHIGAN11992
ShingletonMICHIGAN12006
Bear LakeMICHIGAN12019
Pleasant ValMICHIGAN11990
Walloon LakeMICHIGAN11987
SkeelsMICHIGAN11989
MayfieldMICHIGAN12005
HovlandMINNESOTA12024
BabbittMINNESOTA12000
RhinelanderWISCONSIN12004
CavourWISCONSIN11998

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