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Estimated Seabird Populations of Nesting Pairs on
Midway Atoll (Dec 1998)

Species Location Nesting Pairs Total Nesting Pairs
Black-footed Albatross **      
  Sand 9,687  
  Eastern 10,542  
  Spit 11  
      20,240 (1998)
Laysan Albatross **      
  Sand 182,574  
  Eastern 203,871  
  Spit 1,409  
      387,854 (1996)
Bonin Petrel ****     51,493
Wedge-tailed Shearwater ***     1,000
Christmas Shearwater **     166
Red-tailed Tropicbird ***     5,000
White-tailed Tropicbird **     2*
Masked Booby **     1
Red-footed Booby *     444
Great Frigatebird *     95
Sooty Tern ***     45,000
Gray-backed Tern *     507
Brown Noddy ***     1,000
Black Noddy ***     6,000
White Tern ***     7,500

* Population estimates determined from mean incubation counts.
** Breeding population based on direct counts.
*** Population estimates were taken from the Fefer et al., 1984 (Synopsis of results of recent seabird research conducted in the Northwestern Hawaiian Islands).
**** Breeding population calculated through burrow occupancy density estimates.

Midway Atoll NWR bird list and estimated seabird populations as of 2006 (pdf).


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     Last Modified: May 2, 2007.