bird wiki:
>For other uses, see Bird (disambiguation). Many - see section below. Birds are bipedal, warm-blooded, egg-laying vertebrates characterized primarily by feathers, forelimbs modified as wings, and hollow bones. Birds range in size from the tiny hummingbirds to the huge Ostrich and Emu. Depending on taxonomic viewpoint, there are about 8,800â10,200 living bird species (plus about 120â130 that have become extinct in the span of human history) in the world, making them the most diverse class of terrestrial vertebrates.
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yellow wiki:
low is a color with a wavelength 565-590 nanometers. It is one of the subtractive primary colors, and its complementary color is blue. However, because of the characteristics of paint pigments used in the past, painters traditionally regard its complement as purple.Yellow is a bright cheerful color, often associated with happiness and peace.
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