BirdAnalyst
BBS Route · Washington · BCR 9

Twisp Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 145 species recorded across 47 survey years, still active.

145Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2024Span
8Observers

Bird Species Found on Washington Twisp

Top 40 of 145 species by most recent count. Each links to its species trend.

Species recorded on the Twisp 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
Violet-green SwallowHirundinidae992024+736%1971
American RobinTurdidae652024+57%1971
Brown-headed CowbirdIcteridae492024-3%1971
Western Wood-PeweeTyrannidae462024-5%1971
Northern House WrenTroglodytidae402024+361%1971
Brewer's BlackbirdIcteridae322024-73%1971
House FinchFringillidae322024+900%1980
European StarlingSturnidae312024-61%1971
Tree SwallowHirundinidae302024+144%1972
Cedar WaxwingBombycillidae282024+269%1971
Lazuli BuntingCardinalidae262024+89%1971
American CrowCorvidae242024+155%1971
Yellow WarblerParulidae232024-20%1971
Spotted TowheePasserellidae212024+88%1971
American GoldfinchFringillidae202024+20%1971
Red-winged BlackbirdIcteridae192024+82%1971
House SparrowPasseridae192024+281%1971
Black-capped ChickadeeParidae182024+617%1971
Western TanagerCardinalidae162024+153%1971
Black-headed GrosbeakCardinalidae162024+567%1972
Eurasian Collared-DoveColumbidae162024+225%2013
VeeryTurdidae152024-60%1971
Song SparrowPasserellidae142024+129%1971
Mourning DoveColumbidae132024-6%1971
Lewis's WoodpeckerPicidae122024+4%1971
Western KingbirdTyrannidae122024-65%1971
Bullock's OrioleIcteridae122024-58%1971
Barn SwallowHirundinidae122024+86%1971
Northern Rough-winged SwallowHirundinidae112024-3%1971
Dusky FlycatcherTyrannidae112021+467%1972
Cliff SwallowHirundinidae102024-82%1971
Canada GooseAnatidae102022+233%2009
KilldeerCharadriidae82024-57%1971
Clark's NutcrackerCorvidae82019-68%1971
Chipping SparrowPasserellidae82024-36%1971
Band-tailed PigeonColumbidae81998+167%1975
Rock PigeonColumbidae72006-62%1972
Western MeadowlarkIcteridae72024-83%1971
Yellow-breasted ChatIcteriidae72024-65%1971
Common RavenCorvidae72024+115%1988

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