Species · North Carolina · BBS 2025 Release · 1966–2024
Least Bittern Population Trend in North Carolina
Least Bittern in North Carolina has collapsed: down 77% on the route-weighted index since 1974.
Notable Least Bittern Trends in North CarolinaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →
long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Least Bittern has collapsed in North Carolina: down 77% on the route-weighted index since 1974.
Least Bittern Survey Routes in North Carolina
| Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology → | |||
|---|---|---|---|
| Mashoes | 2 | 1975 | 1975 |
| Kinston | 2 | 2001 | 2001 |
| Merrimon | 1 | 2012 | 1968 |
| Myrtle Grove | 1 | 2003 | 2003 |
| Supply | 1 | 2006 | 2006 |
| Jarvisburg 2 | 1 | 2022 | 2016 |
| Speed | 1 | 1981 | 1981 |
Least Bittern Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.