BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Cassin's Kingbird In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauAerial insectivores

Cassin's Kingbird in Southern Rockies / Colorado Plateau has edged down: down 19% on the route-weighted index since 1970.

-19%Since 1970
100Routes In Region
56Years

Notable Signals

No notable trend signals for Cassin's Kingbird in Southern Rockies / Colorado Plateau. See the full index history below.

Forecast

If the recent trend holds, Cassin's Kingbird in Southern Rockies / Colorado Plateau is projected to fall about 30% by 2029 — from 2.1 in 2024 to a central estimate of 1.5 (95% range 0.02–2.9). A 5-year backtest shows a typical error of ±26.8%, with 100% of held-out values landing inside the 95% band.

-30%Change by 2029
1.5Projected 2029 index
0.02–2.995% range
±26.8%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20251.50.083.0
20261.50.063.0
20271.50.052.9
20281.50.032.9
20291.50.022.9

Routes In Southern Rockies / Colorado Plateau

Routes recording Cassin's Kingbird in Southern Rockies / Colorado Plateau.
HiteUTAH492023
PecosNEW-MEXICO442017
WalsenburgCOLORADO392024
La CienegaNEW-MEXICO392022
CokedaleCOLORADO282024
MountainairNEW-MEXICO212024
GreasewoodARIZONA192003
NageesiNEW-MEXICO182024
Fence LakeNEW-MEXICO182024
La PlataNEW-MEXICO162013
La Plata 2NEW-MEXICO162016
Peach SpringARIZONA142024
Claunch 2NEW-MEXICO132024
Salt LakeNEW-MEXICO112001
LudlowCOLORADO102016
HatchUTAH102024
Black MesaARIZONA91995
Ojo SarcoNEW-MEXICO92024
AnethUTAH92014
ZeniffARIZONA81984
DulceNEW-MEXICO82024
Angel Fire 2NEW-MEXICO82024
Salt Lake 2NEW-MEXICO82024
CounselorNEW-MEXICO72024
Mt. Taylor 2NEW-MEXICO72024

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.