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Things to Know and Do 315 Purple Crackle or Crow Blackbird {Quiscalus quiscala). This northern bird of paradise looks black at a distance but its head is shiny blue and its body iridescent. It is twelve inches long. When flying it holds its long tail with the edge raised like a boat, hence "boat tail." In various forms it is found throuj^out the Eastern States, and in Canada up to Hudson Bay. Baltimore Ork^ Puipte Gradde or Crow Bkckbitd Snowbird {Plectrophenax nivalis). About six and a half inches long, this bird is pure white, overlaid with brown on the crown, back, and sides. The wings, back, and tail are partly black. The Snowbird nests in the Arctic regions and is common in most of temperate agricultural America during winter, wher- ever there is snow. SBcnvfaiid