7k 
"signalman" 
or "flap;" th 
played by frigates appears to be as a 
' ood sources and serves as a flocking stimulus to the more abundar 
M I « 
La^ rsarks 
s 
npecies, particularly Sooty Terns. 'While frigates "prey" on terns the 
relationship benefits both species and is more justly a social-symbiotism 
rather than*parasitism. It is not then due to chance alone that both the 
soouy tern and frigate centers of abundance are in the Phoenix Islands. 
This topic is also discussed in the Jarvis, March 1967 , report. 
Golden plover $ Obs. -5 
Pluvialis dominiea 
All sightings were in the vicinity of islands from late March 
through April. Mo movement was noued in *j unu^ry or reoruciry. 
Red? Phalarope fa Ods. - 1 (2?) 
Phalaroous fulicarius 
A phalarope, probably this species, circled the ship just south 01 
Oahu on 11 March. Another possible sighting was made on 28 March, south 
of Jarvis. Stragglers, probably from the east, are expectable during 
this, the migration period. 
Skua v Obs. - 1 
Cat'naracta skua 
‘w 
13 January, 9° N., 169 ° W.; accidental. 
pomarine Jaeger $ Obs. - 37 
Stercorarius tomarinus 
Long-tailed Jaeger tt Obs. - 1 
Stercorarius longicaudus 
Jaeger sp. • $ Ods. - ^ 
Total - 42 
Immature and adult Pomarines, light and dark pnase, are very co.i- 
spicuous immediately south of Oahu. Many more than the above 37 were 
seen there but were not officially logged. South of the offshore Oahu 
concentrations five "Jaegers" (longtails??) were recorded between 5 M. 
and 10° K. in late April. There were no sightings south of the Equator. 
Black-naped Tern 
Sterna sumatrana 
Several birds were noted around the reels a^ tne harbor ex J .vi.a*.<.e to 
south Fiji. One bird seen on Swains Island, 13 April, is discussea in 
that report. 
0 • 
Gray-backed Tern $ Obs. - 10 
Sterna lun ata 
Birds were found close to Canton^ Enderbury^ and Phoenix xo *sexe 
not recorded elsewhere. 
♦ / 
