Heinroth's Shearwater

Heinroth's Shearwater is a poorly known seabird in the family Procellariidae. Probably a close relative of the Little Shearwater or Audubon's Shearwater , it is distinguished by a long and slender bill and a brown-washed underside.

The Heinroth's Shearwater is classified as Vulnerable (VU), considered to be facing a high risk of extinction in the wild.

Heinroth's Shearwater (Puffinus heinrothi) is a poorly known seabird in the family Procellariidae. Probably a close relative of the Little Shearwater or Audubon's Shearwater (with which it is sometimes considered conspecific), it is distinguished by a long and slender bill and a brown-washed underside. This species is restricted to the seas around the Bismarck Archipelago and northern Solomon Islands. More

* Heinroth's Shearwater Puffinus heinrothi, Bismarck Sea to Solomon Is. * Galapagos Shearwater P. subalaris, Galapagos Is. * Audubon's Shearwater Puffinus lherminieri, a range of subspecies in all oceans * Audubon’s Shearwater P. l. lhermienieri, Bahamas, West Indies. * P. l. loyemilleri, Caribbean south to Venezuela * P. l. temptator, Comoros. * P. l. More

Heinroth's Shearwater was also sometimes considered a subspecies of this bird; the relationship between the Little and Audubon's Shearwater is probably not as close as long believed (Austin 1996, Heidrich et al. 1998, Austin et al. 2001, but see also Penhallurick & Wink 2004, and Rheindt & Austin 2005). This species occurs throughout the oceans of the Southern Hemisphere south of the Tropic of Capricorn. More

little-known Heinroth's Shearwater is sometimes considered a subspecies of either species; its actual relationships remain uncertain due to lack of specimens. Audubon's Shearwater itself has around 10 subspecies. Several have at one time or another been suggested to constitute separate species. More

petrel and Heinroth's shearwater, along with the remaining species in the 1980 petition, continued to be warranted but precluded. Per the Service's listing priority guidelines (September 21, 1983; 48 FR 43098), in our April 23, 2007, Annual Notice on Resubmitted Petition Findings for Foreign Species (72 FR 20184), we determined that listing the six seabird species of family Procellariidae, including the two species that are the subject of this final rule, was warranted. More