Ключевые слова: america, animals, avian, beak, bird, birds, canada, canadian, common, conservation, corax, corvidae, corvus, crows, environment, environmental, feather, horizontal, leslie, living, nature, north, northern, ontario, organism, ornithology, outdoors, outside, park, passeriformes, passerine, perching, raven, songbird, spit, street, thompson, tommy, toronto, watching, wild, wildlife, wing,