BirdAnalyst
BBS Route · New Mexico · BCR 18

Maxwell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 29 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1996–2025Span
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 MeadowlarkIcteridae2432025+25%1998
Canada GooseAnatidae702025+450%2002
Red-winged BlackbirdIcteridae452025+18%1998
Cassin's SparrowPasserellidae442025+122%1998
American CootRallidae402017+123%2003
Horned LarkAlaudidae372025-33%1998
Cliff SwallowHirundinidae322025-77%1998
Mourning DoveColumbidae212025+96%1998
Lark SparrowPasserellidae172025+267%1999
Western KingbirdTyrannidae152025+73%1998
Lark BuntingPasserellidae142025-38%2001
Common RavenCorvidae142025+195%2005
Northern MockingbirdMimidae132025+23%1998
American White PelicanPelecanidae122006-20%1996
RedheadAnatidae122025+6%2005
Cassin's KingbirdTyrannidae102025+167%1999
Blue GrosbeakCardinalidae102025+130%1998
Eared GrebePodicipedidae102007+900%1999
Western Wood-PeweeTyrannidae82025+138%1998
American AvocetRecurvirostridae82025+56%2003
Neotropic CormorantPhalacrocoracidae82005+300%1999
Ruddy DuckAnatidae82007n/an/a
Swainson's HawkAccipitridae72025+33%1998
Vesper SparrowPasserellidae72025-46%1998
Barn SwallowHirundinidae72025+0%1998
Ring-billed GullLaridae72011-71%2001
Eurasian Collared-DoveColumbidae72025+27%2009
Say's PhoebeTyrannidae62025+57%1998
Bullock's OrioleIcteridae62025+225%1998
American GoldfinchFringillidae61997n/an/a
Eastern KingbirdTyrannidae52021-18%1998
MallardAnatidae42025-52%1998
Red-tailed HawkAccipitridae42025+50%1999
Western GrebePodicipedidae42007+0%1998
Wilson's PhalaropeScolopacidae42001n/an/a
GadwallAnatidae42013+213%2005
Long-billed CurlewScolopacidae32025-63%1998
American RobinTurdidae32022+25%1998
Northern PintailAnatidae32009-25%2002

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