BirdAnalyst
BBS Route · Idaho · BCR 10

N Fork Cda R Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 80 species recorded across 23 survey years, no longer active.

80Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2019Span
3Observers

Bird Species Found on Idaho N Fork Cda R

Top 40 of 80 species by most recent count. Each links to its species trend.

Species recorded on the N Fork Cda R 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
Hammond's FlycatcherTyrannidae402019+16%1995
Swainson's ThrushTurdidae362019+6%1995
American RobinTurdidae352019+1%1995
Warbling VireoVireonidae312019+122%1995
Townsend's WarblerParulidae232019-10%1995
Western TanagerCardinalidae182019+450%1995
Song SparrowPasserellidae152019-25%1995
MacGillivray's WarblerParulidae152019-46%1995
Chestnut-backed ChickadeeParidae122019+164%1995
Common RavenCorvidae102019+33%1995
Yellow WarblerParulidae102019+48%1995
Chipping SparrowPasserellidae82019+83%1995
Spotted SandpiperScolopacidae62019+183%1995
Pacific WrenTroglodytidae62019-53%1995
Varied ThrushTurdidae62019-57%1995
Evening GrosbeakFringillidae62013+195%2007
Common MerganserAnatidae52019-38%1995
American DipperCinclidae52019-27%1996
Red-breasted NuthatchSittidae52019-68%1995
Willow FlycatcherTyrannidae52019+333%2001
Canada GooseAnatidae52018n/an/a
Cassin's VireoVireonidae42019+117%1995
Western Wood-PeweeTyrannidae42019-13%2006
Black-headed GrosbeakCardinalidae32018-53%1995
Violet-green SwallowHirundinidae32019-19%1995
Northern Rough-winged SwallowHirundinidae32019-9%2001
Orange-crowned WarblerParulidae32019-50%1995
Red-naped SapsuckerPicidae32016+133%2003
Turkey VultureCathartidae32016+200%2004
Dusky FlycatcherTyrannidae22019+25%2003
Pine SiskinFringillidae22019-68%1995
Barn SwallowHirundinidae22001-63%1994
Brown CreeperCerthiidae22019-43%1995
Golden-crowned KingletRegulidae22019-62%1995
Belted KingfisherAlcedinidae22019+40%1996
Olive-sided FlycatcherTyrannidae22019+140%2001
Brown-headed CowbirdIcteridae22019-33%1997
Spotted TowheePasserellidae22001+100%1996
Tree SwallowHirundinidae22016-33%2001
White-breasted NuthatchSittidae21995n/an/a

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