BirdAnalyst
BBS Route · Massachusetts · BCR 14

Hancock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 94 species recorded across 12 survey years, no longer active.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 →
12Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1997–2015Span
2Observers

Bird Species Found on Massachusetts Hancock

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

Species recorded on the Hancock 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-eyed VireoVireonidae492015+35%1999
Canada GooseAnatidae402014+207%2000
American RobinTurdidae232015-28%1999
OvenbirdParulidae222015+26%1999
Song SparrowPasserellidae172015+26%1999
European StarlingSturnidae152015+176%1999
Red-winged BlackbirdIcteridae152015-27%1999
VeeryTurdidae152015-47%1999
Tufted TitmouseParidae142015+144%1999
American CrowCorvidae132015-41%1999
American RedstartParulidae132015+2%1999
Double-crested CormorantPhalacrocoracidae122013n/an/a
Common YellowthroatParulidae112015+44%1999
Mourning DoveColumbidae102015-34%1999
Blue JayCorvidae102015+5%1999
Black-capped ChickadeeParidae102015+14%1999
American GoldfinchFringillidae92015+61%1999
Barn SwallowHirundinidae92015-8%1999
Wood ThrushTurdidae92015-57%1999
Chimney SwiftApodidae82014+133%2001
Chestnut-sided WarblerParulidae82015-37%1999
Gray CatbirdMimidae82015-23%1999
Least FlycatcherTyrannidae72015+38%1999
Eastern PhoebeTyrannidae72015+138%2000
Yellow WarblerParulidae72015+0%2000
Northern CardinalCardinalidae62015+130%1999
Black-and-white WarblerParulidae62015+67%1999
Downy WoodpeckerPicidae52015+75%2000
Chipping SparrowPasserellidae52015+288%1999
Eastern Wood-PeweeTyrannidae42015+50%1999
Purple FinchFringillidae42015+22%1999
Scarlet TanagerCardinalidae42015+8%1999
Cedar WaxwingBombycillidae42015+0%1999
Pileated WoodpeckerPicidae42015+40%2010
Winter WrenTroglodytidae42013+100%2009
Yellow-bellied SapsuckerPicidae32015+0%1999
Eastern KingbirdTyrannidae32015+0%1999
BobolinkIcteridae32015+14%2000
Rose-breasted GrosbeakCardinalidae32015+14%2000
Tree SwallowHirundinidae32015+10%1999

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