BirdAnalyst
BBS Route · Washington · BCR 5

Mendota 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 99 species recorded across 10 survey years, no longer active.

99Species 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 →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1989–2000Span
1Observers

Bird Species Found on Washington Mendota 2

Top 40 of 99 species by most recent count. Each links to its species trend.

Species recorded on the Mendota 2 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
American RobinTurdidae1592000+55%1991
European StarlingSturnidae892000-49%1991
Song SparrowPasserellidae542000+30%1991
American CrowCorvidae502000-7%1991
Red CrossbillFringillidae421996+600%1990
Black-headed GrosbeakCardinalidae372000+408%1991
Willow FlycatcherTyrannidae322000-11%1991
Swainson's ThrushTurdidae312000-3%1991
Western TanagerCardinalidae162000+111%1991
Savannah SparrowPasserellidae152000+19%1991
Common YellowthroatParulidae152000+17%1991
Red-winged BlackbirdIcteridae132000+30%1991
Spotted TowheePasserellidae132000+0%1991
Steller's JayCorvidae122000-21%1991
Cedar WaxwingBombycillidae122000-23%1991
Black-capped ChickadeeParidae112000+122%1991
American GoldfinchFringillidae102000-46%1991
White-crowned SparrowPasserellidae92000-15%1991
Violet-green SwallowHirundinidae92000+50%1991
Wilson's WarblerParulidae92000-4%1991
Bewick's WrenTroglodytidae92000+400%1991
Marsh WrenTroglodytidae92000+200%1991
Rufous HummingbirdTrochilidae82000+0%1991
Brown-headed CowbirdIcteridae82000+8%1991
Cliff SwallowHirundinidae82000-62%1991
Golden-crowned KingletRegulidae82000-48%1991
Pacific WrenTroglodytidae72000+6%1991
Pine SiskinFringillidae72000+600%1992
Evening GrosbeakFringillidae72000n/an/a
Rock PigeonColumbidae61997-72%1992
BushtitAegithalidae61997+133%1990
Wilson's SnipeScolopacidae62000+133%1991
Chestnut-backed ChickadeeParidae52000+88%1991
Mourning DoveColumbidae52000+100%1994
Barn SwallowHirundinidae42000-27%1991
Orange-crowned WarblerParulidae42000-57%1991
House SparrowPasseridae42000+143%1991
Brewer's BlackbirdIcteridae41997-71%1992
Hutton's VireoVireonidae41996+150%1993
Lesser ScaupAnatidae42000n/an/a

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