BirdAnalyst
BBS Route · Idaho · BCR 9

Tractor Flat Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 68 species recorded across 38 survey years, still active.

68Species 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 →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1985–2025Span
16Observers

Bird Species Found on Idaho Tractor Flat

Top 40 of 68 species by most recent count. Each links to its species trend.

Species recorded on the Tractor Flat 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 LarkAlaudidae1642025+55%1987
Common RavenCorvidae104202530×1989
Western MeadowlarkIcteridae752025+30%1987
Brewer's SparrowPasserellidae512025+10%1987
Franklin's GullLaridae342025+895%1994
Sagebrush SparrowPasserellidae162025-68%1987
Mourning DoveColumbidae142025-45%1987
Sage ThrasherMimidae122025-29%1987
Steller's JayCorvidae101994n/an/a
Vesper SparrowPasserellidae92025+280%1988
Common NighthawkCaprimulgidae82025-37%1987
Black-billed MagpieCorvidae72025+106%1987
California GullLaridae72025146×1996
Barn SwallowHirundinidae72025+233%2003
Rock WrenTroglodytidae72022+125%2006
Bank SwallowHirundinidae62025-9%2010
Western KingbirdTyrannidae52025+150%1988
Greater Sage-GrousePhasianidae52019-89%1988
Long-billed CurlewScolopacidae52023+86%1996
Grasshopper SparrowPasserellidae52025-7%1999
Northern Rough-winged SwallowHirundinidae52008+150%2006
White-faced IbisThreskiornithidae42024+100%1991
Swainson's HawkAccipitridae32025+33%1995
Brown-headed CowbirdIcteridae32024-92%1987
Loggerhead ShrikeLaniidae32025+20%1990
American CrowCorvidae32018-44%1996
European StarlingSturnidae32025-72%1995
Savannah SparrowPasserellidae32025-71%2000
Spotted SandpiperScolopacidae32019n/an/a
Burrowing OwlStrigidae22024-17%1997
Red-tailed HawkAccipitridae22024+100%1997
American RobinTurdidae22024+100%2013
Eastern KingbirdTyrannidae22015+100%1988
WilletScolopacidae22023+100%1996
Great Blue HeronArdeidae21994n/an/a
Bullock's OrioleIcteridae22010+100%1998
Rock PigeonColumbidae22024-29%2000
Lazuli BuntingCardinalidae22005n/an/a
Black-throated SparrowPasserellidae22006n/an/a
Northern HarrierAccipitridae12025-17%1987

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.