Dublin's deciduous forests—remnants of Ireland's ancient oak woodlands—support a distinctive Irish fauna adapted to this habitat.
Irish hare (endemic subspecies), red fox, European badger, stoat, weasel, pine marten (recovering), red squirrel (threatened by grey squirrel), hedgehog.
Mistle thrush, song thrush, robin, wren, dunnock, chaffinch, greenfinch, goldfinch, bullfinch, woodpigeon—plus seasonal migrants (blackcap, chiffchaff) and raptors (sparrowhawk, kestrel).
Reptiles: Common lizard (Ireland's only native reptile), slow worm (legless lizard), grass snake (rare, possibly introduced).
Amphibians: Common frog, smooth newt, palmate newt. Natterjack toad (localized coastal populations).
Brown trout, Atlantic salmon (in connected rivers), European eel (critically endangered), three-spined stickleback, minnow.
Habitat fragmentation, invasive species (grey squirrel, mink), pollution, and climate change pressure these communities. Phoenix Park, St. Anne's Park, and Wicklow Mountains fringes protect key woodland blocks.