Animal, Accipiter, Plant, Waterfowl, Blackbird, Agelaius, Mammal, Jay, alive, acorn, animal, beak, bill, biodiversity, biology, bird, birding, birdwatching, branch, chickadee, conservation, crest, day, eating, ecological, ecology, environment, environmental, fauna, feathers, foliage, gray, grey, horizontal, life, limb, living, natural, nature, ornithology, outdoors, outside, passerine, science, small, songbird, tit, titmouse, tree, tufted, vegetation, vertebrate, warm-blooded, wild, wilderness, wildlife, wings, zoology, outdoor, achiever, writing, skill, passage, discipline, twenty-four hours, feeding, leaf, consumption, implementation, dissimilarity, direction, life science, improvement, woody plant, feather, oscine, division, means, caespitose, plant, fruit, mouth, peak, disfavor, difference, nonuniformity, document, orifice, heterogeneity, rejection, diverseness, plant part, experience, transformation, person, situation
Tufted-titmouse (Baeolophus bicolor) eating an acorn and looking around curiously from a branch