ho 
Transition Fauna: On 3 February about midway between the two island groups 
the following were recorded: Sooty Tern (l flock of 110 birds), three Wedge¬ 
tailed Shearwaters, two White Terns, one small Pterodrorna sp., three Bulwer 
Petrels, four White-rumped Storm Petrels, and one Frigatebird. 
Thus, on the transition day the following types of birds were seen: 
1. Migrant species - Storm Petrels and Pterodrorna . 
2. Wide-ranging typically Phoenix Island species - The flock of 
Sooty Terns containing two White Terns and a Frigatebird; 
the three Bulwer Petrels. 
1 
3. Wide-ranging typically Fiji Island species - Wedge-tailed 
Shearwater; White-tailed Tropicbird. 
The transition area then is not of a "buffer-zone" nature with elements of 
both ecological regions freely intermixing, but is instead a relatively 
barren desert with-only wide-ranging species overlapping, and then only 
infrequently. 
This di 
scussion is summarized 
in Table 10. 
TABLE 10. Occurrence 
of^Species in Phoenix 
to Fiji Pelagic Section 
Typical 
. "Pelagic" Occurrence 
in: 
Phoenix Island Zone 
Transition Zone 
Fiji Island Zone 
Wedge-tailed Shear. 
Regular (Breeds) 
Probably regular 
Abundant (Breeds) 
Pterodrorna sp. 
Transient 
Transient 
Transient 
Bulwer Petrel 
Regular (Breeds) 
Straggler 
• 
Absent (Nonbreeder) 
Leach Storm Pet. 
Transient 
Transient 
Transient 
White-t. Tropicbird 
Rare (l breeding recor 
■d) Straggler 
Regular 
Red-t. Tropicbird 
Regular (Breeds) 
? 
Present (l record) 
31ue-faced 3ooby 
Regular (Breeds) 
Absent ? 
Present ? (Not recorded 
Red-footed Booby 
Regular (Breeds) 
Absent ? 
Common (Breeds) 
Frigatebird 
Regular 
Sporadic 
Regular 
Noddy 
Regular 
Sporadic 
Common 
Sooty Tern 
Abundant 
Sporadic 
Regular 
Fairy Tern 
Regular 
Sporadic 
Common 
Brown-winged Tern 
Absent (Nonbreeder) 
Absfent 
Regular (Breeds) 
Low Density 
All Birds 
High Density 
(Sporadically Highe 
r) High Density 
Recapitulation of Southern Pelagic Sections 
The following lists give those species which contribute five or more 
percent to the section total, and a brief characterization of each section. 
/ 
/ 
