27 
IodWlg, J P 
IpSi 
One bird leading another in a tight twisting climb with staccato pigeon- 
like flight, climbing as rapidly as possible (without aerodynamic 
stalling) to a height of 500-500 feet. Phase 2 - A circling ox straight 
glide at high altitude, birds in formation. Phase 3 - A rapid descent 
to low over grourid or water i« a gilds punctuated by rapid changes 
in flight direction. End of display: This entire process takes 25- 
. f 
k5 seconds, and always involves 2 birds. They fly in formation with 
the follower duplicating very precisely the movements of the leader. 
Often after Phase 3 the tails of both birds are wagged from side to 
side. I could not discern whether or not there wre vocalizations 
involved. We arranged to get to Mohu Manu on Monday. 
March 20, 1964- 
Today at 1700 we made the 600 yard swim to Popoia Island in 
Kanehoe Bay, This swim is long and when going out one is facing a 
small current, and only people who are able to swim should go on such 
a trip. One of our party could not and the rest of us hauled him out 
on a raft. Popoia is a coral island, filled with depressions and hole: 
Extreme caution must be vised here as it would be very easy to break 
legs. Some of the falls are more than five feet deep. At first on 
arriving we toured the whole island banding some 52 birds; later after 
dark we banded another 155 Vedgetails, bringing our banding total to 
207 wedgetailed Shearteairers, 7 ttf which were dark-phased. No other 
petrels or shearwaters were seen, but several flocks of shorebirde were 
noted: Maximum counts on the shorebirds were 17 Ruddy Turnstones, 9 
