Procellariidae

Shearwaters: Puffinini

Shearwaters form a group of tubenoses with mostly rather long and slender bills. They diverged from the primitive tubenose stock about 15 My ago. Since then Calonectris was the first split (13.8 to 9 My ago) and subsequently the group of the larger 'Southern Hemisphere' shearwaters and and a group that presently contains the smaller so called 'Northern' shearwaters. The latter called so because their evolutionary origin is supposedly lying in the Northern Hemisphere. Some species recolonized the Southern Hemisphere.

Shearwaters vary is size from the large ‘big gull-sized’ Cory’s Shearwater to the small Little Shearwater, hardly bigger than a Starling (Sturnus sp.). Most shearwaters breed on the Southern Hemisphere, but there are several tropical and Northern Hemisphere breeders. Shearwaters are very migratory and many species cross the Equator yearly. Therefore dead shearwaters can be found on virtually all beaches on the globe.

Until recently the shearwaters were devided in two genera Calonectris and Puffinus, but based on dna-analysis Penhallurick and Wink (2004) have proposed a splitting of the shearwaters into three genera: Calonectris for the large shearwaters of the Northern Atlantic, the Mediterranean and the waters around Japan, Ardenna for a group of large Southern Hemisphere breeders and Puffinus for the smaller shearwaters such as the Manx'group, Audubon's and Little Shearwaters. This new taxonomy is now widely accepted, but not by all and is stil subject of discussion.
The evolution and taxonomy of the shearwater groups is treated in the respective chapters.

 

  • Calonectris
  •  Lesser Puffinus  
  •  Manx' Puffinus  
  •  Ardenna  
  •    sg Thyellodroma  
  •    sg Neonectris  
  •    sg Ardenna
  •    sg Hemipuffinus