Some of the grass fields have been invaded by Bracken (Pteridium aquilinum) and Brambles (Rubus spp.) and some Gorse (Ulex europaeus). In areas of poor drainage, patches of Rushes (Juncus spp.) and Yellow Iris's (Irish pseudacorus).
Some small areas of saltmarsh had Thrift (Armeris maritima) and a few patches of Cordgrass (Spartina spp). The saltmarsh at the south end of the island had reedbeds (Phragmites australis).
Sea Campion (Silene maritima) occurred on the highest levels of the storm beaches, along with Teasel (Dipsacus fullonum) and Goosefoot/Orache (Chenopodium/Atriplex spp.).
In
May 1991, 31 species of bird were recorded during a brief visit. These
were fairly typical for such an island with Shelduck, Oystercatcher and
Ringed Plover probably breeding. Other species included Stock Dove, Skylark,
Swallow, Meadow Pipit, Pied Wagtail, Wren, Dunnock, Robin, Blackbird,
Song Thrush, Raven and Reed Bunting. A Peregrine Falcon was recorded to
be breeding in the round tower.
Rabbits and Goats occur on the island, while a few Grey Seals regularly
haul out on the beaches.
A tidal lagoon at the north-eastern corner of the island appears to have
been formed by storm beach deposition on its north and east sides.
Part of the Island is designated as part of the Shannon Estuary Special Area of Conservation. Site No DO2165.
Birds Foot Treffoil
Grey Seal