89. diagram is taken from an actual nest found in a teak about 28 ft. above the ground. Almost invariably nest appears on a slightly or well sloped portion of the tree. This is probably necessary as natural hollows are used and it is necessary for such to form to have a knot hole in the trunk broken limb or some such to catch and hold water and slowly rot out the cavity. The birds merely clean out rotting wood and projections to shape the cavity to their own uses. Generally there is a slight depression in the rotting wood and a few Nymphicus feathers and all around the nest against the solid wood margin largish lumps of rotting wood which have not been thrown out are placed. Hollows vary in depth and size according to age and size of the tree. Nests appear to be kept scrupulously clean. Nest hollow area of peck marks in bark 28ft to ground SUCKER GROWTH 12ft 6" diam t at ground Small knot-like sucker growths which form on teak trees of which would damage, rot off + hold water to rot out cavities Nest dimensions by 6 inches elliptical peck marks shown. Entrance about 12" thus with depth of hollow 2ft 3½ inches on upper side 18" on bottom side below entrance at a slight slope along the direction of the trunk though not conforming to the true slope Cavity widened out all the way down till at bottom it was roughly a circle of about 10 or 12" diameter, depth of rotting wood (by driving knife into it till hard wood was reached) roughly something over 18" + very wet at the bottom. apparently cavities in it going deeper.