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

White-throated Swift In Shortgrass Prairie

All regionsShortgrass PrairieAerial insectivores

White-throated Swift in Shortgrass Prairie has fallen sharply: down 52% on the route-weighted index since 1983.

-52%Since 1983
8Routes In Region
34Years

Notable Signals

long arc declinecomputed index

White-throated Swift has fallen sharply in Shortgrass Prairie: down 52% on the route-weighted index since 1983.

Forecast

If the recent trend holds, White-throated Swift in Shortgrass Prairie is projected to fall about 90% by 2029 — from 0.06 in 2024 to a central estimate of 0.01 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±60.8%, with 100% of held-out values landing inside the 95% band.

-90%Change by 2029
0.01Projected 2029 index
0.00–0.0795% range
±60.8%Backtest error
19802029
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
20250.010.000.08
20260.010.000.08
20270.010.000.08
20280.010.000.07
20290.010.000.07

Routes In Shortgrass Prairie

Routes recording White-throated Swift in Shortgrass Prairie.
ChugwaterWYOMING52024
Murray LakeNEBRASKA42003
SabinosoNEW-MEXICO42021
VillegreenCOLORADO22023
Pine RidgeNEBRASKA22000
NinaviewCOLORADO12018
CrawfordNEBRASKA12017
LingleWYOMING11986

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