BirdAnalyst
BBS Route · Washington · BCR 9

Hartline Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 53 species recorded across 18 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 →
18Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2024Span
4Observers

Bird Species Found on Washington Hartline

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

Species recorded on the Hartline 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
Horned LarkAlaudidae1062024+93%1996
House SparrowPasseridae412024-33%1996
Northern Rough-winged SwallowHirundinidae282006+227%1997
Barn SwallowHirundinidae202024-32%1996
Rock PigeonColumbidae162024-61%1996
Common RavenCorvidae132024+106%1996
House FinchFringillidae102024+400%1999
Brewer's BlackbirdIcteridae92023-62%1996
Red-winged BlackbirdIcteridae82024+48%1996
Ring-necked PheasantPhasianidae72024-48%1997
Eurasian Collared-DoveColumbidae72024-38%2021
Mourning DoveColumbidae62024-52%1996
Savannah SparrowPasserellidae62024-64%1996
Red-tailed HawkAccipitridae42024-50%1996
European StarlingSturnidae42024-68%1996
Cliff SwallowHirundinidae42005+263%2001
American CrowCorvidae32021+150%1997
Swainson's HawkAccipitridae32022+50%2003
Ring-billed GullLaridae22004+100%1996
Brown-headed CowbirdIcteridae22023+29%1996
Vesper SparrowPasserellidae22024-77%1996
Sage ThrasherMimidae22001+100%1994
MallardAnatidae22005+50%1996
Wilson's SnipeScolopacidae22004+100%1998
Common NighthawkCaprimulgidae21998+100%1997
Gray PartridgePhasianidae22021+0%1999
Great Horned OwlStrigidae22023+100%1999
California QuailOdontophoridae22024+325%2003
Prairie FalconFalconidae22005+100%2001
KilldeerCharadriidae12024+20%1996
Northern HarrierAccipitridae12022+0%1998
American KestrelFalconidae12021-17%1996
Short-eared OwlStrigidae12023-57%1998
Western KingbirdTyrannidae12022+53%1996
Say's PhoebeTyrannidae12022-59%1996
Black-billed MagpieCorvidae12006-25%1998
Western MeadowlarkIcteridae12024-87%1996
American GoldfinchFringillidae12023+33%1996
Brewer's SparrowPasserellidae12024-25%2000
American RobinTurdidae12024-67%1996

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