BirdAnalyst
BBS Route · Washington · BCR 5

Mendota Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 94 species recorded across 12 survey years, no longer active.

94Species 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 →
12Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1977–1988Span
1Observers

Bird Species Found on Washington Mendota

Top 40 of 94 species by most recent count. Each links to its species trend.

Species recorded on the Mendota 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
European StarlingSturnidae1591988+46%1979
Red-winged BlackbirdIcteridae1121988+313%1979
American CrowCorvidae641988+122%1979
Cliff SwallowHirundinidae481988-55%1979
Song SparrowPasserellidae471988+68%1979
American RobinTurdidae471988+7%1979
Swainson's ThrushTurdidae451988+60%1979
Wilson's WarblerParulidae271988+204%1979
Willow FlycatcherTyrannidae251988+43%1979
American GoldfinchFringillidae221988+56%1979
White-crowned SparrowPasserellidae181988+121%1979
Common YellowthroatParulidae161988+127%1979
Savannah SparrowPasserellidae151988+37%1979
Chipping SparrowPasserellidae141988+60%1979
Golden-crowned KingletRegulidae141988-41%1979
Violet-green SwallowHirundinidae131988+132%1979
Black-capped ChickadeeParidae111988+100%1980
Brown-headed CowbirdIcteridae91988+42%1979
Pacific WrenTroglodytidae91988-12%1979
Spotted TowheePasserellidae81988+360%1979
Rufous HummingbirdTrochilidae61988+71%1980
Steller's JayCorvidae61988+250%1979
Barn SwallowHirundinidae61988-62%1979
Cedar WaxwingBombycillidae61988+29%1979
Purple FinchFringillidae61988+111%1981
Pine SiskinFringillidae51984+70%1979
Black-headed GrosbeakCardinalidae51988+62%1979
California GullLaridae51980n/an/a
Rock PigeonColumbidae51988-40%1985
Hooded MerganserAnatidae51988n/an/a
Chestnut-backed ChickadeeParidae41988+329%1979
Mourning DoveColumbidae41986+300%1982
SoraRallidae31977n/an/a
Brewer's BlackbirdIcteridae31988-47%1979
Western TanagerCardinalidae31988+14%1982
Orange-crowned WarblerParulidae31988-63%1979
Black-throated Gray WarblerParulidae31988+122%1980
BushtitAegithalidae31988-27%1980
Hermit ThrushTurdidae31988+13%1980
Ring-necked PheasantPhasianidae31988+33%1983

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