The property around Twitcher's and the nearby Mt Worth State Park is home to a rich variety of native flora and fauna (and some introduced species as well!)
Birdlife is abundant, 91 species being recorded to date. Among them Superb Lyrebirds, Crimson Rosellas, King Parrots, Wedge-tailed Eagles, Olive Whistlers, Grey Butcherbirds, Tawny Frogmouths, Eastern Spinebills, Superb Blue Wrens, Lewin's Honeyeaters, as well as the rare Sooty Owl and Powerful Owl. You may find out more from the Bird Observer's Birding maps here
Wombats, Swamp Wallabies, Echidnas, Sugar Gliders, Feathertail Gliders, Brush-tailed Possums, Ring-tailed Possums, bush rats, Brown Antechinuses and bandicoots are common. Koalas have been sighted and Platypuses and Eastern Water Rats swim in the creeks and dig burrows in the banks.
The Giant Gippsland Earthworm (Megascolides australis) inhabits certain areas of the Park but is never seen as it spends its entire life underground. Mount Worth State Park is the only area of protected public land where this rare and vulnerable invertebrate is known to occur and we hope that proposed research into the species in the Park will be carried out as this species is too little known.
Reptiles found include Copperhead, Red-bellied Black and Tiger Snakes, Blue-tongued Lizards and numerous skinks.
Plant species (both remnant and regeneration) include Mountain Ash (Eucalyptus regnans), Mountain Grey Gum (E. cypellocarpa), Manna Gum (E. viminalis), Messmate (E. obliqua), Blue Gum (E. globulus) and Blackwood (Acacia melanoxylon), Silver Wattle, Sassafras, Snowy Daisy-bush, Cassinia, Mountain Correa, Musk Daisy-bush, Victorian Christmas Bush, Blanket Leaf and Hazel Pomaderris.
Among the many ferns in the Park are the Rough Tree-fern, Soft Tree-fern and the rare Slender Tree-fern with its very narrow trunk sometimes reaching a height of almost 15 metres.