of area and males though hunting much there also visit the forests to a greater extent than females, but even so they spend only a very short period of their time in them, more about their margins and a great deal in and about native gardens and shorter coconuts. Females spend the bulk of their time in tall coconuts visit short ones and gardens and seldom go into forests if ever, and never far into them. This species plays on the wind on updrafts etc. from the prevailing S.E. and E. winds where they strike the east coast of the islands. It also hunts above the low stunted wind blown scrubs of those areas to a limited ex- tent, generally sighting movement, then settling and remaining motionless on a coral rock outcrop. The birds in this area are almost invariably females, males ap- parently preferring to play and soar over coconuts and the saltpan areas. I do not believe immatures nest but data seems rather to point to them at least pairing off before the immature plumage is changed. The first specimen collected by me on Uvea was an immature phase with well developed gonads (R ovary visible) and was in the company of and playing with another male adult bird and from their un- usual lack of vigilance and interest in their own affairs I believe they were pairing off. This may be wrong how- ever. I do not think the juvenile plumage is retained be- yond a year and as the birds probably breed (as yet unproven) at the beginning of their second year it is possible some birds in a late moult would at least have vestiges of juvenile plumage left at mating and in odd rare cases be