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BBS Route · Alaska · BCR 4

Mccarthy Rd2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 78 species recorded across 19 survey years, still active.

78Species 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 →
1989–2025Span
5Observers

Bird Species Found on Alaska Mccarthy Rd2

Top 40 of 78 species by most recent count. Each links to its species trend.

Species recorded on the Mccarthy Rd2 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
Swainson's ThrushTurdidae1142025+248%1991
White-crowned SparrowPasserellidae392025-19%1991
American RobinTurdidae292025-64%1991
Greater ScaupAnatidae242025-48%1995
Western Wood-PeweeTyrannidae222025+227%2015
Varied ThrushTurdidae132025-43%1991
Orange-crowned WarblerParulidae132025-3%1998
White-winged ScoterAnatidae82025-36%1993
Canada JayCorvidae72025+143%1991
Lincoln's SparrowPasserellidae72025+93%2015
Boreal ChickadeeParidae52025+22%1993
Alder FlycatcherTyrannidae42025+0%1996
Lesser ScaupAnatidae42023-32%1993
Lesser YellowlegsScolopacidae41999+14%1992
Pine GrosbeakFringillidae42025+30%1994
BuffleheadAnatidae42017+150%1995
Northern WaterthrushParulidae42025+69%1999
Black-capped ChickadeeParidae42024-61%1997
Golden-crowned KingletRegulidae42025+183%2021
Violet-green SwallowHirundinidae32021-81%1993
Wandering TattlerScolopacidae31992n/an/a
Rusty BlackbirdIcteridae32024+17%2015
Green-winged TealAnatidae31999+33%1996
Song SparrowPasserellidae31995n/an/a
Ruby-crowned KingletRegulidae32025-12%2015
Black-billed MagpieCorvidae31999n/an/a
Solitary SandpiperScolopacidae32025+60%2018
Common LoonGaviidae22024+33%1991
Common RavenCorvidae22025+167%1991
Tree SwallowHirundinidae22025-60%1999
Townsend's SolitaireTurdidae21989n/an/a
Pacific LoonGaviidae22025+60%1993
Hairy WoodpeckerPicidae22024+0%2015
Horned GrebePodicipedidae21995n/an/a
Red-throated LoonGaviidae21995n/an/a
Olive-sided FlycatcherTyrannidae22025+0%1999
White-winged CrossbillFringillidae22024-83%2017
Bank SwallowHirundinidae22021-60%2018
Trumpeter SwanAnatidae12023-50%1989
Wilson's SnipeScolopacidae12025-43%1993

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