BirdAnalyst
BBS Route · Iowa · BCR 22

Brooklyn Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 46 survey years, still active.

95Species 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 →
46Years 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
6Observers

Bird Species Found on Iowa Brooklyn

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Brooklyn 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 BlackbirdIcteridae1872025+46%1969
DickcisselCardinalidae852025+55%1969
KilldeerCharadriidae41202525×1969
European StarlingSturnidae392022+3%1969
Cliff SwallowHirundinidae372025+440%2003
Common YellowthroatParulidae312025+21%1969
American RobinTurdidae312025+243%1969
Brown-headed CowbirdIcteridae262025+112%1971
American CrowCorvidae212025+23%1969
House SparrowPasseridae162025-61%1969
Mourning DoveColumbidae152025-34%1969
Eastern MeadowlarkIcteridae122025+50%1969
Song SparrowPasserellidae122025+71%1969
Yellow-breasted ChatIcteriidae102005+900%1986
Ring-necked PheasantPhasianidae92025+44%1969
Common GrackleIcteridae82025-66%1969
Northern House WrenTroglodytidae82025+8%1969
Eurasian Collared-DoveColumbidae82022+167%2015
American GoldfinchFringillidae72025-42%1969
Chipping SparrowPasserellidae72025+150%1985
Rock PigeonColumbidae62025-58%1969
Northern CardinalCardinalidae62025+146%1969
Indigo BuntingCardinalidae62025+160%1969
Bank SwallowHirundinidae61980-53%1971
Orchard OrioleIcteridae62022+100%1988
Chimney SwiftApodidae52018-46%1970
Eastern KingbirdTyrannidae52025-48%1969
BobolinkIcteridae52021-42%1969
Baltimore OrioleIcteridae52022+88%1969
Barn SwallowHirundinidae52025-54%1969
Red-headed WoodpeckerPicidae42022-52%1969
Savannah SparrowPasserellidae42013+20%2003
Sedge WrenTroglodytidae42011+133%1993
Horned LarkAlaudidae32025-87%1969
Blue JayCorvidae32021-36%1969
Rose-breasted GrosbeakCardinalidae32025+100%1969
Gray CatbirdMimidae32025+225%1969
Yellow WarblerParulidae32025+100%2002
Willow FlycatcherTyrannidae32021+60%1983
Eastern PhoebeTyrannidae22025+0%1971

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