Ключевые слова: abstract, alone, animal, art, artistic, autumn, background, bare tree, bird, bird lover, bird watching, birds, black, black and white, black and white photo, blue, branch, cold, crow, dark, dead, design, environment, flock, forest, group, isolated, juvenile, landscape, leafless, line, monochrome, natural, nature, outdoor, outdoors, pattern, plant, raven, scene, season, seasonal, silhouette, sky, snow, texture, tree, white, wild, wilderness, wildlife, winter, wood,