Woodlands are a key habitat not just for speckled woods but for threatened butterflies such as pearl-bordered fritillary, wood white and black hairstreak and common species in the Big Butterfly Count including ringlet, brimstone, comma and holly blue.
Experts want the public to help them chart the progress of the speckled wood butterfly which has seen a 71% increase in how widespread they are and a 84% boost in numbers in the last 40 years.
The speckled wood is aptly named, flying in partially shaded woodlands with dappled sunlight.
Sir David, president of Butterfly Conservation, said: "Last year's wet and cold summer made life difficult for many of our butterflies and coupled with this year's late spring our red admirals, small coppers, green-veined whites and speckled woods
really need a boost of warm summer weather to enable them to thrive.
Cytisus and privet are targeted by red admirals, while ribes, ceanothus, honeysuckle and sorbus may lure speckled woods
JIM BRADY found English bluebell at Rainhill and watched holly blues and speckled woods
Robert remembers having to travel to Wales to see speckled woods, before they began steadily expanding their range about a decade a go.
And Robert Wilding, down in Warrington, called to report brimstone, holly blue and speckled wood from his garden.
, a few small tortoiseshell and red admirals are coming in now, with the latter feeding off windfall apples.
Whether probing the remaining buddleia flower spikes, or resting on the sun warmed earth, good numbers came in the last week, joined by smaller counts of red admiral (a switch around from my childhood, when the 'eyed' peacock was much scarcer), gatekeepers, speckled woods, large whites and even a holly blue.
Back to the butterflies, and Marshside, where the 'keepers were joined by smaller numbers of wall, large white, common blue, speckled wood and small skippers.
Spanish bluebells, nettles and dandelions, splashes of colour in a verdant spring landscape, drew speckled woods
, green veined whites, peacocks and orange tip butterfly as I took a circuit around the scrub and lagoons, with fellow birder Neill Hunt.