BirdAnalyst
BBS Route · Alaska · BCR 4

Eagle Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 61 species recorded across 19 survey years, still active.

61Species 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 →
19Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1982–2025Span
5Observers

Bird Species Found on Alaska Eagle

Top 40 of 61 species by most recent count. Each links to its species trend.

Species recorded on the Eagle 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
White-crowned SparrowPasserellidae722025+410%1992
Swainson's ThrushTurdidae502025+15%1992
Alder FlycatcherTyrannidae352025+23%1992
Orange-crowned WarblerParulidae202025+54%1992
Fox SparrowPasserellidae162025+279%2008
Lincoln's SparrowPasserellidae142025+96%1994
Yellow-bellied FlycatcherTyrannidae142025+256%2008
Canada JayCorvidae132025-17%1992
Ruby-crowned KingletRegulidae92025+200%1992
American RobinTurdidae82025+79%1992
Hermit ThrushTurdidae82025+110%1994
Hammond's FlycatcherTyrannidae72025-4%1994
White-winged CrossbillFringillidae72025-34%1994
Gray-cheeked ThrushTurdidae62025+29%1992
Olive-sided FlycatcherTyrannidae62025+54%1994
Violet-green SwallowHirundinidae52025+9%1992
Varied ThrushTurdidae52025-24%1992
Northern WaterthrushParulidae42025+80%1996
Townsend's SolitaireTurdidae42025-15%1994
Cliff SwallowHirundinidae42024+250%2011
Townsend's WarblerParulidae42025+20%2008
Wilson's WarblerParulidae32025+100%1994
Boreal ChickadeeParidae32025+0%1994
Western Wood-PeweeTyrannidae32025+267%2010
Solitary SandpiperScolopacidae32022n/an/a
Common RavenCorvidae22025-29%1992
Tree SwallowHirundinidae22017+300%1991
Lesser YellowlegsScolopacidae22008+0%1991
American KestrelFalconidae21997+100%1992
Say's PhoebeTyrannidae22017+100%2008
Blackpoll WarblerParulidae22014+100%2010
Pine SiskinFringillidae22024n/an/a
Spotted SandpiperScolopacidae12025-50%1992
Bohemian WaxwingBombycillidae12025+0%1992
MacGillivray's WarblerParulidae11982n/an/a
Wilson's SnipeScolopacidae12022+50%2010
Savannah SparrowPasserellidae12024+50%2001
Red-tailed HawkAccipitridae12002+0%1992
Pine GrosbeakFringillidae12002-57%1994
Yellow WarblerParulidae12025+0%2001

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