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Thread: Northern Giant Petrel?

  1. #1
    Junior Member
    Join Date
    Feb 2008

    Default Northern Giant Petrel?

    I have photograph this dead bird in September 2007 near the Laguna Josť Ignacio in Uruguay. Is it a Northern Giant Petrel or just a Southern Giant Petrel with the color of the bill changed by the time after the death?

    Fabian Schneider
    Attached Images Attached Images

  2. #2
    Join Date
    Sep 2006


    Hi Fabian,

    I would say Northern, looking at the color of the bill . All the ones I have seen were alive, so I don't really know if the color changes when they die.

    Last edited by tf1044; February 11th, 2008 at 06:00 PM.

  3. #3
    Senior Member
    Join Date
    Dec 2007


    The bill certainly looks good for Northern Giant Petrel, I see no reason why the bill colour would change from green to reddish after death.

    I have attached a picture of both Southern & Northern birds together with a white phased Southern.

    Best regards


  4. #4
    Junior Member Chris Benesh's Avatar
    Join Date
    Feb 2008
    Tucson, AZ

    Default Your beaked whale images

    Hi Alan,

    I checked out your blog and got caught up in your beaked whale images. So...

    I decided to do a bit of searching around on the net as well as checking several cetacean references I've got. Your were in luck that the animal is an adult male with emergent teeth and some coloration evident on the beak. There were a couple of candidates that matched your specimen somewhat. I first narrowed the choices down to Andrew's Beaked Whale, Ginko-toothed Beaked Whale, and Blainville's Beaked Whale, with Andrew's and Ginko-toothed looking the closest.

    Then I found this really cool and informative interactive ID key at this site:

    A run through the key established that your specimen is likely Andrew's Beaked Whale M. bowdoini. Factor in known distribution, and you've got a good fit. The maps show detailed stranding locales, and of all these candidates, only Andrew's has occurred in your part of the world.

    This was another useful site.

    These might be some folks to get in contact with regarding analysis of your DNA samples. [notice too their comments that Andrew's BW is known only from some 20 strandings worldwide!]

    Hope this helps!

    Last edited by Chris Benesh; February 12th, 2008 at 05:38 AM.
    "Minds are like parachutes. They only function when they are open."
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  5. #5
    Senior Member
    Join Date
    Dec 2007


    Hi Chris,

    Thanks for the info.

    The general feeling is that it is an adult male Andrew's Beaked Whale M. bowdoini

    We have received a lot of help from cetacean experts from the United Kingdom, Australia & New Zealand.

    The head is being collected this evening for safe keeping and DNA samples will be sent off for analysis in the near future.

    I will start a new thread with more pictures on the mammal thread very soon



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