BirdAnalyst
BBS Route · Iowa · BCR 22

College Spgs Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 81 species recorded across 28 survey years, no longer active.

81Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2004Span
3Observers

Bird Species Found on Iowa College Spgs

Top 40 of 81 species by most recent count. Each links to its species trend.

Species recorded on the College Spgs 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 BlackbirdIcteridae2122004+68%1969
Mourning DoveColumbidae1382004+31%1969
DickcisselCardinalidae1182004-8%1969
American RobinTurdidae712004+50%1969
European StarlingSturnidae692004+324%1969
Western MeadowlarkIcteridae672004+132%1981
Common GrackleIcteridae652004+8%1969
House SparrowPasseridae522004-65%1969
Brown-headed CowbirdIcteridae472004+119%1969
Ring-necked PheasantPhasianidae452004+524%1969
Barn SwallowHirundinidae402004-46%1969
Northern BobwhiteOdontophoridae342004+99%1969
Northern CardinalCardinalidae272004+3%1969
Yellow-billed CuckooCuculidae252004+471%1970
American GoldfinchFringillidae232004-21%1969
Red-headed WoodpeckerPicidae162004-38%1969
Common YellowthroatParulidae152004-7%1969
Northern House WrenTroglodytidae152004+91%1969
Brown ThrasherMimidae142004+28%1969
Chipping SparrowPasserellidae142004+88%1991
Baltimore OrioleIcteridae132004-3%1969
KilldeerCharadriidae122004+825%1969
Indigo BuntingCardinalidae112004+118%1969
Eastern KingbirdTyrannidae92004-49%1969
American CrowCorvidae92004+108%1969
Blue JayCorvidae72004-47%1969
Grasshopper SparrowPasserellidae72004+113%1969
Eastern MeadowlarkIcteridae72004-97%1971
Red-bellied WoodpeckerPicidae62004+233%1972
Orchard OrioleIcteridae62004+70%1970
Black TernLaridae61969n/an/a
Gray CatbirdMimidae52004-59%1969
Song SparrowPasserellidae52004+767%1989
Eastern BluebirdTurdidae42004+56%1970
Downy WoodpeckerPicidae42004+167%1970
Cedar WaxwingBombycillidae42004+0%1989
Rose-breasted GrosbeakCardinalidae32003-60%1969
Loggerhead ShrikeLaniidae32004+39%1969
Horned LarkAlaudidae31992-46%1971
Vesper SparrowPasserellidae31991+50%1979

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