BirdAnalyst
BBS Route · Illinois · BCR 22

Milford Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 99 species recorded across 54 survey years, still active.

99Species 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 →
54Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
4Observers

Bird Species Found on Illinois Milford

Top 40 of 99 species by most recent count. Each links to its species trend.

Species recorded on the Milford 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
European StarlingSturnidae4012025+227%1968
Red-winged BlackbirdIcteridae1132025-79%1968
American CrowCorvidae1052025+129%1968
American RobinTurdidae1012025+200%1968
Mourning DoveColumbidae702025+72%1968
DickcisselCardinalidae572025-51%1968
Cliff SwallowHirundinidae472025+592%2000
Common GrackleIcteridae392025-54%1968
Brown-headed CowbirdIcteridae292025+524%1968
Song SparrowPasserellidae252025+59%1968
Indigo BuntingCardinalidae202025-6%1968
House SparrowPasseridae202025-91%1968
Eastern MeadowlarkIcteridae192025-75%1968
Canada GooseAnatidae122011-66%2001
American GoldfinchFringillidae112025-89%1968
Northern CardinalCardinalidae102025+118%1968
KilldeerCharadriidae92025+486%1968
Chipping SparrowPasserellidae92025+800%1969
Barn SwallowHirundinidae82025-40%1968
Horned LarkAlaudidae62023-97%1968
Vesper SparrowPasserellidae62025-43%1968
Northern House WrenTroglodytidae62025+79%1968
Swamp SparrowPasserellidae61996+200%1989
Northern BobwhiteOdontophoridae52023-42%1968
Common YellowthroatParulidae52025-12%1968
Ring-necked PheasantPhasianidae42025-86%1968
Rock PigeonColumbidae42025-87%1968
Eastern KingbirdTyrannidae42025+0%1968
Blue JayCorvidae42023+117%1968
Gray CatbirdMimidae42025+40%1969
Bank SwallowHirundinidae42013-67%2004
Sedge WrenTroglodytidae41997+33%1991
MallardAnatidae42009-35%1995
Yellow-billed CuckooCuculidae32022+175%1968
Orchard OrioleIcteridae32025+67%1990
Tree SwallowHirundinidae32025+50%2011
Northern Rough-winged SwallowHirundinidae32023-55%1993
Henslow's SparrowPasserellidae32013n/an/a
Lark SparrowPasserellidae32023n/an/a
Belted KingfisherAlcedinidae22017+133%1971

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