Animal, Tree, Plant, Tree Trunk, Finch, alive, animal, beautiful, biodiversity, biology, bird, birding, birdwatching, blue, branch, conservation, day, ecology, environment, environmental, fauna, feathers, gray, grey, horizontal, life, limb, living, natural, nature, organism, ornithology, outdoors, outside, perched, prothonotary, scene, scenery, scenic, science, sky, small, songbird, tree, vegetation, vertebrate, warbler, warm-blooded, weather, wild, wilderness, wildlife, wings, yellow, zoology, performer, achiever, outdoor, skill, discipline, twenty-four hours, implementation, dissimilarity, direction, life science, improvement, woody plant, feather, oscine, division, means, musician, plant, passerine, disfavor, difference, nonuniformity, singer, heterogeneity, rejection, diverseness, experience, transformation, person, entertainer, situation
Prothonotary warbler (Protonotaria citrea) perched on a tree limb