R PUFFINUS NEWELLI 



MARCH 196A 



APRIL 1964- 



<• 



^*^ 



Figure 14a. — Distribution of Newell' s Shearwater, March-June 1964. 



Newell's Shearwater 



Puffinus puffinus newelli Henshaw 



Status : Common resident during breeding sea- 

 son in March-September; uncommon October- 

 February. 



Newell's Shearwater was first observed in 

 the study area on March 16, 1964, and was seen 

 regularly each month thereafter except March 

 1965. Peak numbers were in May of both years. 

 From June through September numbers were 

 lower but nearly constant. A decline that began 

 in October reached a low point in February and 

 the first half of March when the species was 

 nearly absent from the area. 



Distribution : Two density centers were noted 

 for this species: one within 200 miles of the 

 Hawaiian Islands, especially north of Oahu, and 

 one at the southern end of the study area below 

 lat. 14° N. (figs. 14a, 14b), Relatively few 

 sightings were made in the area between lat. 

 14° and 19° N. 



In March and April, when the species was 

 evidently heading toward its breeding grounds 

 in the Hawaiian Islands from its wintering area 



36 



