Ключевые слова: america, american, animal, avian, beak, bird, birds, branch, conservation, dendroica, eggs, environment, feather, nature, nest, nesting, ontario, ornithology, outdoors, parulidae, passeriformes, passerine, perched, perching, petechia, prothonotary, setophaga, songbird, spring, warbler, wild, wildlife, wing, yellow,