aba events

A Shearwater’s Survival

facebooktwitter

We don’t often see an exclamation point in an ornithological paper’s title, but the one in a scientific report this week is excitingly appropriate: “Bryan’s Shearwaters have survived in the Bonin Islands, Northwestern Pacific!”

Bryan's ShearwaterBryan’s Shearwater was formally described as a new species just last year, based on an old museum specimen from Midway Atoll. The species was thought possibly to be extinct, but it is now documented as recently as 2011 on a Japanese island in the Bonin archipelago about 600 miles south of Tokyo. (The archipelago is named Ogasawara Islands in Japan.) Perhaps these islands contain the shearwater’s undiscovered breeding grounds as well, according to Japanese researchers.

Kazuo Horikoshi and five colleagues from Japan announced discoveries of recent Bryan’s Shearwater records on February 8 at a meeting of the Pacific Seabird Group in Hawaii.

The key to the new discoveries was the old specimen analyzed by Peter Pyle, Andreanna Welch, and Robert Fleischer in 2011. (See News and Notes in Birding, January 2012, p. 22.) They judged the bird's morphological and genetic characters to be distinct from all other species, and they named it Puffinus bryani.

Turn now to the northwestern Pacific. Six small shearwaters found in the Bonin archipelago from 1997 to 2011 could not be assigned to any known species. But when the Bonin birds were compared with the Pyle team’s bird, they matched the morphological and genetic characters of Bryan’s Shearwater.

The excitement is tempered by a serious conservation concern. Three of the six birds found on the Bonin islands were carcasses preyed upon by rats. Horikoshi and his coauthors call for searches to locate the species’ breeding grounds. If these are on rat-infested islands, eradicating the rats will be essential to this shearwater’s survival.

In a separate presentation at the meeting, Pyle and four coauthors updated the group on information about breeding habitats, vocalizations, and potential at-sea records of Bryan’s Shearwater in the North Pacific. They also suggested conservation steps to protect this obviously rare and threatened species.

Read abstracts of the history-making announcements on the Pacific Seabird Group website. The Horikoshi team’s report is on page 37 and the Pyle group’s report is on page 78 of the 115-page file.

Despite some errors in the reporting, it is encouraging to see prominent coverage given to the discoveries in Japanese media, such as articles in the Mainichi Daily News and the Asahi Shimbun. Financial and conservation support from Japan—and broad international support, too—will be necessary to save what is obviously a rare and most likely endangered species.

The following two tabs change content below.
Paul Hess

Paul Hess

Paul Hess, the Birding "News and Notes" Department Editor, started watching birds at age 7 in Los Angeles. Now a retired newspaper editor in Pennsylvania, he formerly chaired the Pennsylvania Ornithological Records Committee, has contributed many articles to the journal Pennsylvania Birds, writes an ornithological news column for the Pennsylvania Society for Ornithology newsletter, edits the Three Rivers Birding Club newsletter in Pittsburgh, and has coauthored several National Geographic books on birds. Paul has received prominent awards for outstanding contributions to Pennsylvania ornithology and for bird conservation efforts in the state.
Paul Hess

Latest posts by Paul Hess (see all)

  • Ted Floyd

    Just to open up a can of worms…

    Here’s a pretty clear-cut case, it seems to me, in which specimen-based ornithology may well prove to have saved a species from extinction. If it weren’t for that original specimen, nobody would have known to be on the lookout for Bryan’s Shearwater.

  • http://profile.typepad.com/6p0162fbed8b53970d Ned Brinkley

    Excellent summary. Thanks so much for linking in the articles from Japanese media.

Birders know well that the healthiest, most dynamic choruses contain many different voices. The birding community encompasses a wide variety of interests, talents, and convictions. All are welcome.
If you like birding, we want to hear from you.
Read More »

Recent Comments

  • Steven Tucker, in Birding is Hard... { Birding is hard*. Taking inside jokes (which is what this phrase is) too literally is awfully easy in comparison. * = how often do birders... }
  • Greg Neise, in Birding is Hard... { Cameron, a couple points to start off with. For as long as I've been birding, the definition of it has been pretty clear in my... }
  • Rare Bird Alert: April 24, 2015 « ABA Blog { […] last but certainly not least, the rarity season in south Florida is heating up, with a heard-only Cuban Pewee (5) frustratingly avoiding birders near... }
  • Ruth Hanessian, in Birding is Hard... { Greg's comments are right on but from a much older perspective I am now delighted to study more closely the "common" species in my back... }
  • Birding Online: February 2015 « ABA Publications { […] ABA members have access to the full text in magazine format of Keith Betton’s review of a new Helm Guide to Bird ID, as... }
  • Older »

Categories

Authors

Archives

via email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

  • Wildlife Ecology Research April 22, 2015 11:35
    Rensselaerville Falls, Huyck Preserve and Biological Research Station. July 13, 2014. What: Wildlife Ecology Research Program for high school students entering their Junior or Senior Year. Where: Huyck Preserve and Biological Research Station 5052 Delaware Turnpike Rensselaerville, NY 12147 When: Late applications due May 1 by 5 PM, EDT. Session I—July 5-26 Session II—August […]
  • Young Birder Blog Birding #37 April 8, 2015 4:19
    For many birders, February is a month of waiting. After February, the snow will melt and the first Killdeers and American Woodcocks will usher in a parade of exciting spring migrants. […]
  • Open Mic: Searching for Snowy Owls in Ohio March 25, 2015 5:22
    At the beginning of this year, I remembered missing the chance to spot a Snowy Owl when the bird stormed across the United States the previous winter, so I was determined to see one of these birds this winter. […]

Follow ABA on Twitter