BirdAnalyst
BBS Route · Kansas · BCR 22

Thrall Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 56 species recorded across 3 survey years, no longer active.

56Species 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 →
3Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–1970Span
3Observers

Bird Species Found on Kansas Thrall

Top 40 of 56 species by most recent count. Each links to its species trend.

Species recorded on the Thrall 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
Eastern MeadowlarkIcteridae1411970-28%1967
Common GrackleIcteridae971970+98%1967
DickcisselCardinalidae931970+43%1967
Northern BobwhiteOdontophoridae761970+21%1967
Mourning DoveColumbidae621970-18%1967
Brown-headed CowbirdIcteridae441970+16%1967
Red-winged BlackbirdIcteridae401970+3%1967
Grasshopper SparrowPasserellidae331970-41%1967
Barn SwallowHirundinidae231970+77%1967
Upland SandpiperScolopacidae201970-36%1967
Eastern KingbirdTyrannidae141970-13%1967
House SparrowPasseridae121970-65%1967
American CrowCorvidae101970-33%1967
Northern MockingbirdMimidae91970+0%1967
KilldeerCharadriidae81970+14%1967
Yellow-billed CuckooCuculidae71970-56%1967
Baltimore OrioleIcteridae71970+133%1967
Red-tailed HawkAccipitridae61970+50%1967
Loggerhead ShrikeLaniidae61970-75%1967
Red-headed WoodpeckerPicidae51970-67%1967
Chimney SwiftApodidae51967n/an/a
European StarlingSturnidae51970-64%1967
Indigo BuntingCardinalidae51967n/an/a
Bell's VireoVireonidae51967n/an/a
Scissor-tailed FlycatcherTyrannidae41970-33%1967
Blue JayCorvidae41970+33%1967
Lark SparrowPasserellidae41970+300%1967
Field SparrowPasserellidae41970-71%1967
Northern CardinalCardinalidae41970-56%1967
Blue GrosbeakCardinalidae41967n/an/a
Brown ThrasherMimidae41970-50%1967
American RobinTurdidae41970+100%1967
Northern Rough-winged SwallowHirundinidae41968n/an/a
Rock PigeonColumbidae31970-40%1967
Common NighthawkCaprimulgidae31970-73%1967
Common YellowthroatParulidae31970+50%1967
Red-bellied WoodpeckerPicidae21970+100%1967
Eastern Wood-PeweeTyrannidae21970+0%1967
Horned LarkAlaudidae21970+0%1967
Orchard OrioleIcteridae21970-60%1967

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