BirdAnalyst
BBS Route · New Mexico · BCR 18

Maxwell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 28 survey years, still active.

106Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1996–2024Span
1Observers

Bird Species Found on New Mexico Maxwell

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Maxwell 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
Violet-green SwallowHirundinidae2931997n/an/a
Western MeadowlarkIcteridae2142024+16%1998
Cassin's SparrowPasserellidae662024+62%1998
Cliff SwallowHirundinidae562024-71%1998
American CootRallidae402017+123%2003
Horned LarkAlaudidae312024-3%1998
Red-winged BlackbirdIcteridae262024+19%1998
Common RavenCorvidae212024+326%2005
Vesper SparrowPasserellidae162024-26%1998
Mourning DoveColumbidae132024+73%1998
Cassin's KingbirdTyrannidae132024+175%1999
American White PelicanPelecanidae122006-20%1996
Bullock's OrioleIcteridae112024+225%1998
Northern MockingbirdMimidae112024+43%1998
American WigeonAnatidae102006-14%1997
Eared GrebePodicipedidae102007+900%1999
Northern ShovelerAnatidae82011+122%2000
Lark SparrowPasserellidae82024+289%1999
Blue GrosbeakCardinalidae82024+40%1998
Neotropic CormorantPhalacrocoracidae82005+300%1999
Ruddy DuckAnatidae82007n/an/a
American KestrelFalconidae72024+71%1998
Ring-billed GullLaridae72011-71%2001
Brown-headed CowbirdIcteridae62024-71%1998
American GoldfinchFringillidae61997n/an/a
Canada GooseAnatidae52024+129%2002
Swainson's HawkAccipitridae52024+13%1998
Eastern KingbirdTyrannidae52021-18%1998
Western KingbirdTyrannidae52024+33%1998
Western Wood-PeweeTyrannidae52024+238%1998
American AvocetRecurvirostridae52017+56%2003
Great Blue HeronArdeidae52023+29%2001
Eurasian Collared-DoveColumbidae52024-27%2009
MallardAnatidae42022+8%1998
Red-tailed HawkAccipitridae42024+33%1999
Say's PhoebeTyrannidae42024+50%1998
Barn SwallowHirundinidae42023+0%1998
Western GrebePodicipedidae42007+0%1998
Wilson's PhalaropeScolopacidae42001n/an/a
GadwallAnatidae42013+213%2005

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