BirdAnalyst
BBS Route · Michigan · BCR 12

Betchler Lks Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 21 survey years, still active.

92Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2025Span
6Observers

Bird Species Found on Michigan Betchler Lks

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Betchler Lks 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
Nashville WarblerParulidae482025-21%2004
OvenbirdParulidae422025-37%2004
Hermit ThrushTurdidae412025-39%2004
Red-eyed VireoVireonidae282025-8%2004
Common RavenCorvidae182024+21%2004
American RobinTurdidae172025+57%2004
Blue JayCorvidae152025+346%2004
Chipping SparrowPasserellidae142025-73%2004
Pine WarblerParulidae142025+63%2005
Eastern BluebirdTurdidae112024+100%2004
Sandhill CraneGruidae102025-18%2004
Red-breasted NuthatchSittidae102025+65%2005
Eastern Wood-PeweeTyrannidae92025-33%2004
Canada GooseAnatidae82019-47%2011
Black-throated Green WarblerParulidae72025-41%2004
Least FlycatcherTyrannidae52025-71%2004
American CrowCorvidae52024-17%2004
White-throated SparrowPasserellidae52025-70%2004
American RedstartParulidae52025+78%2004
Yellow-bellied SapsuckerPicidae52025+140%2006
Great Crested FlycatcherTyrannidae42025+50%2005
Indigo BuntingCardinalidae42025+225%2007
Cedar WaxwingBombycillidae42025-55%2004
Magnolia WarblerParulidae42024+0%2005
Black-capped ChickadeeParidae42025-56%2004
Wood ThrushTurdidae42025+0%2023
Common LoonGaviidae32024+100%2004
Evening GrosbeakFringillidae32008-74%2004
Eastern TowheePasserellidae32025+60%2005
Blue-headed VireoVireonidae32025+0%2005
Chestnut-sided WarblerParulidae32025+60%2004
Blackburnian WarblerParulidae32025-10%2004
Swainson's ThrushTurdidae32016-18%2006
Ruffed GrousePhasianidae32019+200%2009
Rose-breasted GrosbeakCardinalidae32025+0%2021
Pileated WoodpeckerPicidae22025-50%2004
Yellow-bellied FlycatcherTyrannidae22025-29%1993
Purple FinchFringillidae22025-29%2005
Vesper SparrowPasserellidae22025-78%2004
Song SparrowPasserellidae22023-29%2005

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.