The Marsh is home to spawning Frogs and Toads in the Spring.
The mass of purple in the late Summer is Rose Bay Willow Herb.
A small permanent population of Coot, Moorhens and Mallard nest here, as do visiting Mute Swans and Canada Geese.
Visitors to the Marsh include Herons (from the Village Heronry), Little Grebe, Teal, Wigeon, Shoveler, Gadwall, Tufted Duck, Greylag Geese, and Black Headed Gulls.
Curlew, Redshank, and Oyster Catchers regularly find winter feeding in the immediate surrounds; Snipe and Brent Geese have been known to visit; Moles leave evidence that they are just below ground .
Kestrels occasionally hover overhead; early morning Roe Deer have been spotted, and it is sometimes an evening haunt of one of the local Barn Owls.
In Summer, Swifts, Swallows and Martins fill the sky.
The adjacent trees and shrubs, along with the local gardens, hold Blackbirds, Wood Pigeon, Collared Doves, Magpies, Jackdaws, Rooks, Carrion Crows and visiting Pheasants.
The resident Great Tits and Blue Tits are joined by passing Greenfinches, Goldfinches and summer visiting Willow Warblers and Blackcaps.
Just offshore, Goosanders may be seen diving for fish; resident Eider Ducks are "ever-present", as are a variety of Gulls;
Cormorants are a common sight flying or fishing; in Summer;
Gannet from Bass Rock can often be seen diving in from a great height,
as can Arctic/Sandwich/Roseate/Common Terns from Coquet Island;
other visitors include Red Throated Divers, Red Breasted Mergansers, Razorbills and Arctic Skuas.
Dolphins have been seen feeding, presumably on Mackerel, close inshore in the bay.
If disturbed, at low tide, the winter-resident flock of Golden Plover may be seen wheeling above Marden rocks.
Seasonally migrating Pink-footed Geese can sometimes be seen and heard as they pass overhead, normally at a significant height, or move between one of their winter roosts south of Amble and feeding in the local fields.
Looking inland, a winter flock of mixed Mute and Whooper Swans may be feeding in the fields towards Warkworth; a Sparrow Hawk or a Kestrel may be surveying their patch from the Church spire.