Black-bully, BALLY-TREE WOOD, or SAPODILLA PLUM (Sapota Müllerii or Achras Sapota), a South American tree, belonging to the Sapotaceæ. Its wood, which is greenish and very durable, is used for shipbuilding. The bark is febrifugal, mistle-thrush and the song-thrush or mavis. The plumage of the adult male is wholly of a deep black colour, the bill and orbits of the eyes yellow; the female and the young are dark brown above, paler on the throat, and rusty brown on the breast, with brown bill, yellow, however, in spring-time. Very old blackbirds have the feathers on the back of the neck tipped with fine hairs. White, cream-coloured, and other variations occasionally occur. The blackbird frequents hedges, thickets, and woods; is shy, restless, and vigilant, keeping much under cover of whilst the seeds are diuretic and aperient. The inspissated milky juice is largely imported from Berbice as gutta-percha.