BirdAnalyst
BBS Route · Alaska · BCR 4

Caribou Mtn. Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 53 species recorded across 30 survey years, still active.

53Species 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 →
30Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2024Span
8Observers

Bird Species Found on Alaska Caribou Mtn.

Top 40 of 53 species by most recent count. Each links to its species trend.

Species recorded on the Caribou Mtn. 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
White-crowned SparrowPasserellidae622024+97%1995
Swainson's ThrushTurdidae532024+65%1995
Alder FlycatcherTyrannidae302024+123%1995
American RobinTurdidae282024+12%1995
Fox SparrowPasserellidae212024+139%1995
Wilson's WarblerParulidae212024-27%1997
Lincoln's SparrowPasserellidae142024+38%1997
Orange-crowned WarblerParulidae132024-41%1997
Gray-cheeked ThrushTurdidae112024-7%1995
Canada JayCorvidae92024+40%1995
Ruby-crowned KingletRegulidae72022-52%1995
Blackpoll WarblerParulidae72021+100%2008
Savannah SparrowPasserellidae62024+17%1995
Golden-crowned SparrowPasserellidae62023+350%2012
White-winged CrossbillFringillidae42024+275%2004
Yellow WarblerParulidae42024+50%1997
Common RavenCorvidae42024+60%2000
Olive-sided FlycatcherTyrannidae32024+233%2005
Spotted SandpiperScolopacidae32018+200%2003
Wilson's SnipeScolopacidae22024+25%1995
Lapland LongspurCalcariidae21993n/an/a
Violet-green SwallowHirundinidae22013+33%1994
Townsend's WarblerParulidae22002+100%1993
Varied ThrushTurdidae22024-57%1995
American Tree SparrowPasserellidae22024-73%1996
Willow PtarmiganPhasianidae22023+100%1997
MerlinFalconidae22022+0%2007
Northern Hawk OwlStrigidae22001n/an/a
Bohemian WaxwingBombycillidae22024+0%2014
Long-tailed JaegerStercorariidae12007+0%2000
Lesser YellowlegsScolopacidae12024-25%1997
Hammond's FlycatcherTyrannidae12018+0%1993
Hermit ThrushTurdidae12008-70%2001
Sandhill CraneGruidae12023+17%2001
Northern PintailAnatidae11995n/an/a
WhimbrelScolopacidae12015-71%1996
American Golden-PloverCharadriidae11995n/an/a
Northern WaterthrushParulidae12024-67%2002
Canada GooseAnatidae12018-50%1997
Pine GrosbeakFringillidae12022-20%2005

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.