Plant, Bird, Animal, Willow, alive, animal, aves, avian, biodiversity, biology, bird, birding, birdwatching, branch, climate, cold, conservation, curious, day, dead, ecology, environment, environmental, fauna, feathers, gray, grey, icy, leaves, life, limb, looking, nature, orange-crowned, organism, ornithology, outdoors, outside, perch, science, season, seasonal, small, songbird, tree, vegetation, vertebrate, warbler, warm-blooded, weather, wildlife, winter, yellow, zoology, sensory activity, outdoor, peculiar, performer, queer, skill, low temperature, discipline, twenty-four hours, leaf, mood, nonuniformity, support, life science, improvement, woody plant, feather, heterogeneity, division, funny, musician, plant, passerine, looking at, frigid, difference, dissimilarity, class, temperature, singer, oscine, look, diverseness, plant part, transformation, person, coldness, foliage, entertainer, situation, sensing
Orange-crowned warbler (Vermivora celata) looking out with curiousity as it perches in front of icy, dead leaves on a tree