BirdAnalyst
BBS Route · North Dakota · BCR 17

Gorham Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 117 species recorded across 48 survey years, still active.

117Species 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 →
48Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
10Observers

Bird Species Found on North Dakota Gorham

Top 40 of 117 species by most recent count. Each links to its species trend.

Species recorded on the Gorham 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
Western MeadowlarkIcteridae4552025+56%1970
Ring-necked PheasantPhasianidae266202512×1970
Mourning DoveColumbidae1732025+316%1970
Brown-headed CowbirdIcteridae1162025+364%1970
Red-winged BlackbirdIcteridae982025+125%1970
Horned LarkAlaudidae942025-44%1970
Grasshopper SparrowPasserellidae932025+319%1970
Eastern KingbirdTyrannidae662025+348%1970
BobolinkIcteridae662025+392%1971
Northern House WrenTroglodytidae502025+929%1974
Common GrackleIcteridae472025+375%1970
Vesper SparrowPasserellidae402025+97%1971
American RobinTurdidae382025+900%1970
KilldeerCharadriidae232025+210%1970
Western KingbirdTyrannidae202025+960%1970
Brewer's BlackbirdIcteridae192025+75%1970
Chestnut-collared LongspurCalcariidae192025-58%1970
Sharp-tailed GrousePhasianidae182025+300%1975
Wilson's SnipeScolopacidae182025+180%2002
Greater Sage-GrousePhasianidae181997n/an/a
MallardAnatidae162025+277%1970
Yellow-headed BlackbirdIcteridae162025+175%1970
Clay-colored SparrowPasserellidae162025+440%1971
Yellow WarblerParulidae162025+700%1970
Cliff SwallowHirundinidae162025+213%1998
Upland SandpiperScolopacidae142025+136%1970
Savannah SparrowPasserellidae13202511×1971
Spotted TowheePasserellidae132025+200%1970
Field SparrowPasserellidae122025+420%1974
Common YellowthroatParulidae122025+43%1970
Yellow-breasted ChatIcteriidae122025+225%1994
European StarlingSturnidae102025-6%1970
Orchard OrioleIcteridae102025+250%1976
Tree SwallowHirundinidae102018+420%2001
CanvasbackAnatidae102016+171%1991
Bank SwallowHirundinidae91996+90%1976
American GoldfinchFringillidae82025+163%1972
House SparrowPasseridae82025-4%1970
Gray PartridgePhasianidae82025+160%1974
American WigeonAnatidae82016+0%1986

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