BirdAnalyst
BBS Route · Iowa · BCR 22

Bryant Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 56 survey years, still active.

100Species 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 →
56Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2024Span
4Observers

Bird Species Found on Iowa Bryant

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Bryant 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 BlackbirdIcteridae2552024-44%1969
DickcisselCardinalidae882024-52%1969
American RobinTurdidae882024+123%1969
House SparrowPasseridae692024-83%1969
European StarlingSturnidae602024-39%1969
Common YellowthroatParulidae432024+78%1969
Northern Rough-winged SwallowHirundinidae42201312×1973
Barn SwallowHirundinidae372024+317%1969
Cliff SwallowHirundinidae30202411×1986
Mourning DoveColumbidae222024+25%1969
Eastern MeadowlarkIcteridae202024-10%1969
KilldeerCharadriidae182024+493%1969
Northern House WrenTroglodytidae172024+23%1969
Eastern KingbirdTyrannidae152024-30%1969
Song SparrowPasserellidae152024-59%1969
Ring-necked PheasantPhasianidae132024-77%1969
Canada GooseAnatidae132016+21%1999
American GoldfinchFringillidae122024-42%1969
Field SparrowPasserellidae122024+0%1969
Chipping SparrowPasserellidae112024+567%1970
Northern CardinalCardinalidae112024+163%1969
Chimney SwiftApodidae102024-39%1969
Brown-headed CowbirdIcteridae102024-5%1969
Common GrackleIcteridae102024-93%1969
Cedar WaxwingBombycillidae92024+138%1980
Tree SwallowHirundinidae9202427×1992
Rock PigeonColumbidae82024-81%1969
Indigo BuntingCardinalidae62024+4%1969
Gray PartridgePhasianidae61998+25%1990
Sandhill CraneGruidae52024+140%2002
American CrowCorvidae42024-85%1969
BobolinkIcteridae42024-85%1969
Warbling VireoVireonidae42024+20%1970
Yellow WarblerParulidae42024+200%1969
House FinchFringillidae42024+17%1993
Eurasian Collared-DoveColumbidae42024+100%2014
Willow FlycatcherTyrannidae32024-58%1969
Grasshopper SparrowPasserellidae32024-80%1969
Wild TurkeyPhasianidae32022+75%2007
Great EgretArdeidae32016-67%2015

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