Ключевые слова: animal, avian, background, beak, beautiful, beauty, bird, birds, black, blue sky, branch, bright, cardinal, cardinalis, cardinalis cardinalis, close up, closeup, color, colorful, crest, environment, feathers, forest, green, head, isolated, leafless, male, mask, naked tree, natural, nature, northern, northern cardinal, ornithology, outdoor, outdoors, park, perched, red, redbird, season, singing, songbird, spring, tree, wild, wildlife, winter, wood,