BirdAnalyst
Species · BCR 18 · BBS 2025 Release · 1966–2024

Cassin's Kingbird In Shortgrass Prairie

All regionsShortgrass PrairieAerial insectivores

Cassin's Kingbird in Shortgrass Prairie has surged: up 103% on the route-weighted index since 1970.

+103%Since 1970
49Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Cassin's Kingbird has surged in Shortgrass Prairie: up 103% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Cassin's Kingbird in Shortgrass Prairie is projected to rise about 70% by 2029 — from 0.80 in 2024 to a central estimate of 1.4 (95% range 0.52–2.2). A 5-year backtest shows a typical error of ±102.4%, with 60% of held-out values landing inside the 95% band.

+70%Change by 2029
1.4Projected 2029 index
0.52–2.295% range
±102.4%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
20251.30.472.1
20261.30.492.1
20271.30.502.2
20281.30.512.2
20291.40.522.2

Routes In Shortgrass Prairie

Routes recording Cassin's Kingbird in Shortgrass Prairie.
Mica ButteCOLORADO141987
CampoCOLORADO132019
MaxwellNEW-MEXICO132024
FarleyNEW-MEXICO112024
SedanNEW-MEXICO112024
SabinosoNEW-MEXICO112021
VariaderoNEW-MEXICO102021
EdisonCOLORADO61999
GilpinCOLORADO52024
VillegreenCOLORADO42024
RosebudNEW-MEXICO42024
LingleWYOMING42024
GrenvilleNEW-MEXICO32024
Frankel CityTEXAS32002
RushCOLORADO22024
HudsonCOLORADO22003
Adams Co.COLORADO22022
CrowleyCOLORADO22022
TrincheraCOLORADO22022
NinaviewCOLORADO22024
EllicottCOLORADO22024
TimpasCOLORADO22019
PritchettCOLORADO22024
Doyle Bridge 2COLORADO22019
Murray LakeNEBRASKA22023

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