BirdAnalyst
BBS Route · Iowa · BCR 22

Bryant Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 57 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 →
57Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2025Span
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 BlackbirdIcteridae2872025-37%1969
Tree SwallowHirundinidae258202590×1992
House SparrowPasseridae1052025-81%1969
American RobinTurdidae962025+166%1969
DickcisselCardinalidae742025-53%1969
Barn SwallowHirundinidae652025+314%1969
KilldeerCharadriidae532025+650%1969
Mourning DoveColumbidae452025+39%1969
Common YellowthroatParulidae442025+92%1969
Northern Rough-winged SwallowHirundinidae42201312×1973
European StarlingSturnidae292025-33%1969
Eastern MeadowlarkIcteridae242025+4%1969
Brown-headed CowbirdIcteridae192025+26%1969
Northern CardinalCardinalidae182025+190%1969
Northern House WrenTroglodytidae162025+57%1969
Song SparrowPasserellidae152025-54%1969
Eastern KingbirdTyrannidae132025-3%1969
Canada GooseAnatidae132016+21%1999
Indigo BuntingCardinalidae122025+13%1969
Eurasian Collared-DoveColumbidae122025+250%2014
Chimney SwiftApodidae102025-34%1969
Ring-necked PheasantPhasianidae92025-76%1969
Common GrackleIcteridae92025-92%1969
Eurasian Tree SparrowPasseridae92025+233%2017
Field SparrowPasserellidae72025+26%1969
Cedar WaxwingBombycillidae72025+200%1980
American GoldfinchFringillidae62025-42%1969
Chipping SparrowPasserellidae62025+400%1970
Gray PartridgePhasianidae61998+25%1990
Rock PigeonColumbidae42025-79%1969
American CrowCorvidae42024-85%1969
Baltimore OrioleIcteridae42025+0%1970
Warbling VireoVireonidae42025+80%1970
American KestrelFalconidae42025+33%1980
Red-bellied WoodpeckerPicidae42025+100%1990
Grasshopper SparrowPasserellidae32024-80%1969
Gray CatbirdMimidae32025+133%1970
Brown ThrasherMimidae32025-55%1969
Orchard OrioleIcteridae32025+0%1994
House FinchFringillidae32025+50%1993

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