BirdAnalyst
BBS Route · Illinois · BCR 22

Harristown Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 70 species recorded across 16 survey years, still active.

70Species 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 →
16Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2001–2025Span
5Observers

Bird Species Found on Illinois Harristown

Top 40 of 70 species by most recent count. Each links to its species trend.

Species recorded on the Harristown 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
Red-winged BlackbirdIcteridae2942025-9%2007
American RobinTurdidae1422025+57%2007
DickcisselCardinalidae1032025+230%2008
House SparrowPasseridae882025-9%2007
House FinchFringillidae622025+600%2007
European StarlingSturnidae602025-67%2007
Mourning DoveColumbidae362025-29%2007
KilldeerCharadriidae352025+39%2008
Northern CardinalCardinalidae292025+91%2007
Eastern MeadowlarkIcteridae272025+96%2007
Northern House WrenTroglodytidae262025+427%2007
Brown-headed CowbirdIcteridae232025+63%2007
Rock PigeonColumbidae182025+310%2007
Chipping SparrowPasserellidae152025+26%2007
Chimney SwiftApodidae112025-25%2007
Vesper SparrowPasserellidae112025+33%2008
Common YellowthroatParulidae112025+214%2008
Ring-necked PheasantPhasianidae92025+100%2007
Common GrackleIcteridae92025-95%2007
Savannah SparrowPasserellidae92019+800%2018
Song SparrowPasserellidae82025-40%2007
Barn SwallowHirundinidae82025-67%2007
Horned LarkAlaudidae72025-85%2007
Northern BobwhiteOdontophoridae72025-43%2008
American CrowCorvidae62025+73%2007
Indigo BuntingCardinalidae62025+4%2008
Purple MartinHirundinidae62025+100%2021
Cliff SwallowHirundinidae52025+41%2017
American GoldfinchFringillidae42025+112%2007
MallardAnatidae32021+50%2018
Henslow's SparrowPasserellidae32025+200%2019
Cedar WaxwingBombycillidae22025-33%2001
Eurasian Collared-DoveColumbidae22025+186%2007
Eastern KingbirdTyrannidae22025+67%2014
Willow FlycatcherTyrannidae22025+50%2008
Field SparrowPasserellidae22025-38%2017
Gray CatbirdMimidae22024+50%2021
Turkey VultureCathartidae22025-25%2019
Upland SandpiperScolopacidae22017+100%2016
Orchard OrioleIcteridae22025+100%2022

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