Seagull Lake is an 88 ha lake near Sceale Bay on the western side of the Eyre Peninsula in South Australia. It lies about 20 km south of Streaky Bay and 280 km north of Port Lincoln.
Seagull Lake is a sub-coastal saline lake fed by a marine spring. There are grassed sand-dunes on the west between the lake and the bay. On the east the lake is bordered by about a kilometre of whipstick mallee and paperbarks, before a series of ephemeral saline wetlands. The surrounds retain much native vegetation, especially samphire and halophytic shrubland. The threatened Beaded Samphire and West Coast Mintbush are found at the lake. Although some parts are permanently wet, much of the lake bed dries up during droughts. Part of the lake is protected in the Sceale Bay Conservation Park.[1]
The lake has been identified by BirdLife International as an Important Bird Area (IBA) because it regularly supports a breeding colony of Fairy Terns. Potential threats to the colony are from disturbance by people, vehicles and dogs, water abstraction in the catchment, and fox predation.[2] Other birds recorded using the lake are Banded Stilts, Red-necked Avocets, Red-necked Stints, Red-capped Plovers, Sharp-tailed Sandpipers and Hooded Plovers.[1]