BirdAnalyst
BBS Route · Maine · BCR 14

Weeks Brook Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 94 species recorded across 17 survey years, still active.

94Species 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 →
17Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1995–2016Span
2Observers

Bird Species Found on Maine Weeks Brook

Top 40 of 94 species by most recent count. Each links to its species trend.

Species recorded on the Weeks Brook 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-throated SparrowPasserellidae322016-27%1997
Red-eyed VireoVireonidae322016+67%1997
Northern ParulaParulidae212016+194%1997
Magnolia WarblerParulidae212016+90%1997
American RobinTurdidae212016-33%1997
OvenbirdParulidae202016+94%1997
Hermit ThrushTurdidae192016-19%1997
Swainson's ThrushTurdidae182016+107%1997
VeeryTurdidae132016+113%1997
Blue JayCorvidae112016-9%1997
Black-capped ChickadeeParidae102016+73%1997
Common YellowthroatParulidae92016-35%1997
Yellow-bellied SapsuckerPicidae82016-39%1997
Nashville WarblerParulidae82016-41%1997
Alder FlycatcherTyrannidae72016-24%1997
Black-throated Blue WarblerParulidae62016-28%1997
Black-throated Green WarblerParulidae62016+133%1998
Winter WrenTroglodytidae62016-63%1997
Red-breasted NuthatchSittidae62016+88%1997
Wilson's SnipeScolopacidae52015+29%1997
American GoldfinchFringillidae52016+30%1997
Cedar WaxwingBombycillidae52016+55%1997
Ruby-crowned KingletRegulidae52016+0%1997
American RedstartParulidae42016-59%1997
Golden-crowned KingletRegulidae42016-10%1998
Chimney SwiftApodidae42015-25%2002
Pine SiskinFringillidae42005-77%1997
Common RavenCorvidae42016-22%2001
Yellow-bellied FlycatcherTyrannidae32016-36%1997
Least FlycatcherTyrannidae32016-27%1997
Blue-headed VireoVireonidae32015-25%1998
Northern WaterthrushParulidae32016+29%1998
Mourning WarblerParulidae32011-33%1997
Common LoonGaviidae32016+20%1999
Red-tailed HawkAccipitridae32002+0%1996
White-winged CrossbillFringillidae32007-44%1998
Black-and-white WarblerParulidae32016+38%1998
Ruffed GrousePhasianidae32007+150%2000
American CrowCorvidae22016-64%1999
Chestnut-sided WarblerParulidae22016-70%1997

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.