Species · North Carolina · BBS 2025 Release · 1966–2024
Glossy Ibis Population Trend in North Carolina
Glossy Ibis in North Carolina has collapsed: down 90% on the route-weighted index since 1970.
-90%Since 1970
6Routes In State
33Years
Notable Glossy Ibis Trends in North Carolina
long arc declinecomputed index
Glossy Ibis has collapsed in North Carolina: down 90% on the route-weighted index since 1970.
Glossy Ibis Population Forecast in North Carolina
If the recent trend holds, Glossy Ibis in North Carolina is projected to stay roughly flat through 2028, near 0.00 (95% range 0.00–0.42). A 5-year backtest shows a typical error of ±193.8%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.00Projected 2028 index
0.00–0.4295% range
±193.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.01 | 0.00 | 0.42 |
| 2025 | 0.00 | 0.00 | 0.42 |
| 2026 | 0.00 | 0.00 | 0.42 |
| 2027 | 0.00 | 0.00 | 0.42 |
| 2028 | 0.00 | 0.00 | 0.42 |
Glossy Ibis Survey Routes in North Carolina
| Wards Corner | 6 | 1986 | 1986 |
| Myrtle Grove | 3 | 1993 | 1967 |
| Cayton | 3 | 2016 | 2016 |
| Jarvisburg 2 | 2 | 2015 | 2015 |
| Shallotte | 1 | 1988 | 1971 |
| Merrimon | 1 | 2023 | 1968 |
Glossy Ibis Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.