Species · Oklahoma · BBS 2025 Release · 1966–2024
Northern Parula Population Trend in Oklahoma
Northern Parula in Oklahoma has surged: up 319% on the route-weighted index since 1969.
+319%Since 1969
33Routes In State
57Years
Notable Northern Parula Trends in Oklahoma
long arc increasecomputed index
Northern Parula has surged in Oklahoma: up 319% on the route-weighted index since 1969.
Northern Parula Population Forecast in Oklahoma
If the recent trend holds, Northern Parula in Oklahoma is projected to rise about 42% by 2029 — from 0.97 in 2024 to a central estimate of 1.4 (95% range 0.85–1.9). A 5-year backtest shows a typical error of ±18.4%, with 100% of held-out values landing inside the 95% band.
+42%Change by 2029
1.4Projected 2029 index
0.85–1.995% range
±18.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.3 | 0.78 | 1.8 |
| 2026 | 1.3 | 0.80 | 1.8 |
| 2027 | 1.3 | 0.81 | 1.9 |
| 2028 | 1.4 | 0.83 | 1.9 |
| 2029 | 1.4 | 0.85 | 1.9 |
Northern Parula Survey Routes in Oklahoma
| Colcord | 9 | 2022 | 1992 |
| Hee Mountain | 7 | 2024 | 1999 |
| Heyburn | 7 | 2024 | 1992 |
| Baron | 4 | 2023 | 1967 |
| Noble | 4 | 2024 | 1977 |
| Big Cedar | 3 | 2024 | 1968 |
| Indianola | 3 | 2024 | 2003 |
| Holdenville | 3 | 2023 | 1971 |
| Peoria | 3 | 2023 | 1967 |
| Bethel | 3 | 2024 | 1999 |
| Pocola | 3 | 2016 | 1993 |
| Mcalester | 2 | 1990 | 1969 |
| Mill Creek | 2 | 2017 | 2004 |
| Mt. Herman | 2 | 2022 | 1998 |
| Matoy | 2 | 2000 | 2000 |
| Blanco | 1 | 2016 | 1967 |
| Phillips | 1 | 2006 | 1992 |
| Ouachita Nf | 1 | 2014 | 1996 |
| Ardmore | 1 | 1987 | 1987 |
| Canadian | 1 | 2017 | 1967 |
| Beggs | 1 | 2023 | 1996 |
| Welch | 1 | 2023 | 2002 |
| Collinsville | 1 | 2019 | 1969 |
| Bartlesville | 1 | 2019 | 1970 |
| Goodwater | 1 | 2016 | 1996 |
Northern Parula Population Trend in Other States
alabamaarkansascaliforniaconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiopennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.