Delaware Natural Heritage and Endangered Species Program

• Pied-billed Grebe^BR (Podilymbus podiceps)

• Northern Harrier^BR (Circus cyaneus)

• Broad-winged Hawk^BR (Buteo platypterus)

• Black-Crowned Night-Heron (Nycticorax nycticorax)

• Yellow-Crowned Night-Heron (Nyctanassa violacea)

• American Kestrel (Falco sparverius)

• Red Knot (Calidris canutus)

• Piping Plover (Charadrius melodus)

• Short-eared Owl ^BR (Asio flammeus)

• American Oystercatcher (Haematopus palliatus)

• Black Rail (Laterallus jamaicensis)

• Upland Sandpiper (Bartramia longicauda)

• Black Skimmer (Rynchops niger)

• Henslow's  Sparrow (Ammodramus henslowii)

• Common Tern^BR (Sterna hirundo)

• Forster’s Tern^BR (Sterna forsteri)

• Least Tern (Sterna antillarum)

• Cerulean Warbler (Setophaga cerulea)

• Hooded Warbler ^BR (Setophaga citrina)

• Swainson’s Warbler(Limnothlypis swainsonii)

• Sedge Wren (Cistothorus platensis)     
  
  ^BR Breeding population only

Reptiles

• Leatherback Turtle (Dermochelys coriacea)
• Kemp’s Ridley Turtle (Lepidochelys kempii)
• Green Turtle (Chelonia mydas)
• Loggerhead Turtle (Caretta caretta)
• Bog Turtle (Clemmys muhlenbergii)
• Corn Snake (Elaphe guttata guttata)
• Eastern Scarlet Snake (Cemophora coccinea)
• Redbelly Watersnake (Nerodia erythrogaster)

Amphibians

• Eastern Mud Salamander (Pseudotriton montanus montanus)
• Eastern Tiger Salamander (Ambystoma tigrinum tigrinum)
• Barking Treefrog (Hyla gratiosa)

Mammals

• Little Brown Bat (Myotis lucifugus)
• Northern Long-eared Bat (Myotis septentrionalis)
• Delmarva Fox Squirrel (Sciurus niger cinereus)
• Blue Whale (Balaenoptera musculus)
• Fin Whale (Balaenoptera physalus)
• Humpback Whale (Megaptera novaengliae)
• North Atlantic Right Whale (Eubalaena glacialis)
• Sei Whale (Balaenoptera borealis)
• Sperm Whale (Physeter macrocephalus)

Fish

• Glassy Darter(Etheostoma vitreum)
• Blueridge Sculpin (Cottus caeruleomentum)
• Bridled Shiner (Notropis bifrenatus)
• Ironcolor Shiner (Notropis chalybaeus)
• Atlantic Sturgeon (Acipenser oxyrhynchus)
• Shortnose Sturgeon (Acipenser brevirostrum)
• Blackbanded Sunfish (Enneacanthus chaetodon)

Mollusks

• Yellow Lampmussel (Lampsilis cariosa)
• Eastern Lampmussel (Lampsilis radiata)
• Dwarf Wedgemussel (Alasmidonta heterodon)
• Eastern Pondmussel (Ligumia nasuta)
• Brook Floater (Alasmidonta varicosa)
• Triangle Floater (Alasmidonta undulata)
• Tidewater Mucket (Leptodea ochracea)

Insects

• Little White Tiger Beetle (Cicindela lepida)
• White Tiger Beetle (Cicindela dorsalis)
• Seth Forest Scavenger Beetle (Hydrochus sp.spangleri)
• Burgundy Bluet (Enallagma dubium)
• Pale Bluet (Enallagma pallidum)
• Baltimore Checkerspot (Euphydryas phaeton)
• Banner Clubtail (Gomphus apomyius)
• Laura’s Clubtail (Stylurus laurae)
• Midland Clubtail (Gomphus fraternus)
• Sable Clubtail (Gomphus rogersi)
• Black-tipped Darner (Aeshna tuberculifera)
• Taper-tailed Darner (Gomphaeschna antelope)
• Black Dash (Euphyes conspicua)
• Frosted Elfin (Incisalia irus)
• Treetop Emerald (Somatochlora provocans)
• Bethany Beach Firefly (Photuris bethaniensis)
• Hessel’s Hairstreak (Mitoura hesseli)
• King’s Hairstreak (Satyrium kingi)
• Aralia Shoot Borer Moth (Papaipema araliae)
• Dark Stoneroot Borer Moth (Papaipema duplicatus)
• Maritime Sunflower Borer Moth (Papaipema maritima)
• Pitcher Plant Borer Moth (Papaipema appassionata)
• Yellow Stoneroot Borer Moth (Papaipema astuta)
• Elfin Skimmer (Nannothemis bella)
• Rare Skipper (Problema bulenta)
• Brown Spiketail (Cordulegaster bilineata)
• Sely’s Sundragon (Helocordulia selysii)
• Marbled Underwing (Catocala marmorata)
• Ulalume Underwing (Catocala ulalume)
• Mulberry Wing (Poanes massasoit massasoit)
• Chermock’s Mulberry Wing (Poanes massasoit chermocki)