Most passerines lay colored eggs, in contrast to non-passerines, where the color generally is white, with some exceptions. Passerines are all terrestrial, found on all continents except Antarctica. The group gets its name from the Latin name for the house sparrow, Passer domesticus. The order includes such birds as finches, warblers, and jays. In other orders of birds, the toe arrangement is different. The passerines are true perching birds, being specialized for holding onto a branch, with three toes directed forward without any webbing or joining, and one toe directed backward. Sparrows, whether the term is used for the Old World birds or the New World species, belong to the order Passeriformes, the largest order of birds, with more than half of all species. 3 American sparrows or New World sparrows.Jesus reassures his followers that even a sparrow cannot fall without God's notice (Luke 12:6 Mathew 10:29), telling them "Do not fear therefore you are of more value than many sparrows." In the original sense of the term as any small bird, the sparrow also appears in the New Testament of the Bible as an apt metaphor for the importance that God places on human beings. The sparrows, with their unique forms, behaviors, and songs, add an important component to the joy that humans feel in experiencing nature. (In some classifications, the American sparrows are placed within the finch family Fringillidae.) The American sparrows are not closely related to the true sparrows, despite some physical resemblance, such as the seed-eater's bill and frequently well-marked heads. Sparrow is the common name for various small passerine (perching) birds applied either to various members of the Old World family Passeridae ("true sparrows") or the American sparrows, or New World sparrows, within the family Emberizidae.
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