animal ater avian background beak beautiful bird birdwatching black branch coal color colorful ecology european feather feathered focused forest grey habitat lichen limb little moss natural nature parus periparus red season singing sitting small soft songbird stick tiny tit tree trunk twig wild wilderness wildlife wing winged wood zoology abstract appearance blended checkered checks christmas colored colour coloured colourful contrast contrasting dark decorative design details geometric geometrical green horizontal interconnected interlaced interlinked intertwined interwoven light linear lined lines pattern patterned patterns perspectives shape shaped shapes style texture textured textures thick thin vertical vibrant wallpaper