Scorton lakes Nature Reserve is home to a diversity of birds from Arctic Terns to the Collared Dove many are on the red and amber endangered list. There are 157 species of birds 32 of which are on the red list and 44 on the amber list. This means that 54% of all the birds are of significant concern.
Scorton Lakes Nature Reserve has many varied Invertebrates, including rare species of Dragonflies such as the Small Redeye Damsel Fly, Red veined Darter, Lesser Emperor and Emperor.
It also includes 28 various species of wasps, bees, beetles, moths, including the rare Cinnabar moth. There are also 22 species of butterfly, 2 of which are on the red list, The Wall Brown, and White Letter Hairstreak.