Squirrel climbing tree trunk in autumn

squirrel red squirrel animal rodent nature forest autumn tree tree trunk climbing movement wildlife autumn forest fallen leaves green grass fluffy tail activity park national park fauna forest fauna mammal nature photography city park seasonal beauty of nature wild animal macro shot close-up natural environment nature reserve forest landscape small animal cute animal sharp eyes autumn landscape autumn day sunny day no people calmness serenity sharp focus detailed shot sharpness motion in frame delight curiosity energy caution