Species · BCR 9 · BBS 2025 Release · 1966–2024
Cassin's Kingbird In Great Basin
Cassin's Kingbird in Great Basin has edged down: down 21% on the route-weighted index since 1990.
-21%Since 1990
4Routes In Region
15Years
Notable Signals
No notable trend signals for Cassin's Kingbird in Great Basin. See the full index history below.
Routes In Great Basin
| Meadow Vally | NEVADA | 2 | 1999 |
| Beryl | UTAH | 2 | 2021 |
| Walker Can | NEVADA | 1 | 2009 |
| Newcastle | UTAH | 1 | 2010 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.