bush capra dry field goat goats island landscape mammal meadow nature Sardinia shrub summer view Abitibi autumn CaCanada day fall forest Québec river sky sunny trees valley water blue clean clear clouds dead tree lake national reserve natural Ostersee transparent turquoise caps cluster England english fungi Great Britain group many profusion saprophyte Surrey toadstools wood marsh marshland marshy pond pool spring weed wet bracken dense fern green habitat Pteridium aquilinum woodland Cacti cactus Greece Greek invader mountains naturalised opuntia pear plant Prickly wild reservoir ripple sailing water Sussex water supply