Delaware Coastal Zone


IBA Justification

The site was identified as important in 2012 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Ruddy Turnstone Arenaria interpres LC - - present A4i
Red Knot Calidris canutus NT - - present A4i
Short-billed Dowitcher Limnodromus griseus LC - - present A4i

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2012).


IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
WRP_Kent, DE (10001) Environmental System 418 protected area overlaps with site 0
Woodland Beach Wildlife Area 2,528 protected area overlaps with site 0
Thousand Acre Marsh Nature Preserve 39 protected area contained by site 0
Ted Harvey Conservation Area (Wildlife Area) Conservation Area 1,048 protected area overlaps with site 0
Supawna Meadows National Wildlife Refuge 1,836 protected area overlaps with site 0
Prime Hook National Wildlife Refuge 4,158 protected area contained by site 0
Prime Hook Environmental System 206 protected area contained by site 0
Pea Patch Island Nature Preserve 68 protected area contained by site 0
Odessa Access Area 7 protected area contained by site 0
Milford Neck Woods Private Conservation Land 0 protected area contained by site 0
Milford Neck Macrosite Conservation Easement 41 protected area contained by site 0
Love Creek State Other or Unknown 1 protected area contained by site 0
Little Creek Wildlife Area 1,884 protected area contained by site 0
Indian River-Bulls Eye Farms Environmental System 59 protected area contained by site 0
GRP_Sussex, DE (10005) Environmental System 5 protected area contained by site 0
Great Marsh Private Conservation Land 859 protected area overlaps with site 0
Fort Mott State Park 37 protected area contained by site 0
Delaware Bay Estuary Ramsar Site, Wetland of International Importance 51,252 protected area overlaps with site 28,334
Delaware National Estuarine Research Reserve 2,189 protected area overlaps with site 0
Cedar Swamp Wildlife Area 2,180 protected area overlaps with site 0
Cape Henlopen State Park 2,176 protected area contained by site 0
Cape Henlopen Nature Preserve 3 protected area contained by site 0
Bombay Hook Proposed Wilderness 679 protected area contained by site 0
Bombay Hook National Wildlife Refuge 8,582 protected area overlaps with site 0
Beach Plum Island Nature Preserve 52 protected area contained by site 0
Augustine Beach Access Area 36 protected area contained by site 0
Augustine Wildlife Area 1,055 protected area contained by site 0
Assawoman Canal 38 protected area contained by site 0
Assawoman Wildlife Area 1,162 protected area contained by site 0
Armstrong Heronry Private Conservation 284 protected area contained by site 0


Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Delaware Coastal Zone. Downloaded from http://datazone.birdlife.org/site/factsheet/delaware-coastal-zone-iba-usa on 28/09/2023.