Bird, Animal, Finch, Plant, Anthus, Tree, alive, animal, aves, avian, background, biodiversity, biology, bird, birding, birdwatching, branch, climate, cold, conservation, day, ecology, environment, environmental, fauna, feathers, gray, grey, hopping, ice, jumping, leaves, life, limb, nature, orange-crowned, organism, ornithology, outdoors, science, season, seasonal, small, songbird, tree, vegetation, vertical, vertebrate, warbler, warm-blooded, weather, wild, wildlife, winter, yellow, zoology, performer, skill, sport, low temperature, discipline, twenty-four hours, leaf, mood, person, nonuniformity, life science, improvement, woody plant, outside, feather, heterogeneity, division, direction, musician, plant, passerine, diversion, difference, dissimilarity, class, temperature, singer, oscine, diverseness, plant part, transformation, crystal, coldness, track and field, foliage, entertainer, situation
Orange-crowned warbler (Vermivora celata) hopping from one perch to another near icy, dead leaves on a tree