Species · Delaware · BBS 2025 Release · 1966–2024
Little Blue Heron Population Trend in Delaware
Little Blue Heron in Delaware has edged up: up 21% on the route-weighted index since 1974.
+21%Since 1974
7Routes In State
17Years
Notable Little Blue Heron Trends in Delaware
No notable trend signals for Little Blue Heron in Delaware. See the full index history below.
Little Blue Heron Survey Routes in Delaware
| Mt Pleasant | 1 | 2010 | 2010 |
| Wilmington | 1 | 2014 | 1967 |
| Frankford | 1 | 1972 | 1972 |
| Lowes Xrds | 1 | 1975 | 1975 |
| Bethany Bch | 1 | 1975 | 1975 |
| Milton | 1 | 1974 | 1974 |
| Blackbird | 1 | 2009 | 2001 |
Little Blue Heron Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.