Magpie Differences

topic posted Tue, November 8, 2005 - 11:26 AM by  Unsubscribed
Why are there supposedly absolutely no sightings of black-billed magpies in the yellow-billed magpies' range, or vice versa, I wonder. And why are the yellow-billed magpies dying off right now? I literally see them dying. Are the black-billed magpies dying off too, where they live?
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  • Re: Magpie Differences

    Tue, November 8, 2005 - 12:05 PM
    The magpie die off may well be west nile virus; the corvids are notoriously susceptible to it.
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      Re: Magpie Differences

      Tue, November 8, 2005 - 2:54 PM
      I dont know why but I couldnt belive it when you said that it could be west nile virus. I did a google search and you are completely correct. So scarry! I guess they are dying by the thousands.
      • Re: Magpie Differences

        Tue, November 8, 2005 - 3:39 PM
        So are we supposed to report dead magpies to the CDC or health department or something? I know you're supposed to report dead crows and ravens. I hadn't heard anything about magpies, but it would make sense to do so.

        Of course here on the San Francisco peninsula I don't see a lot of magpies, dead OR alive.
        • Re: Magpie Differences

          Tue, November 8, 2005 - 8:35 PM
          hmmm.....I'd probably start w/ local Fish and Game and see what they say.

          Here in the SF Sunset District, the crows and ravens are healthy and fit and sassy as can be.
  • Re: Magpie Differences

    Thu, November 10, 2005 - 8:20 AM
    Y'know the whole yellow-black billed magpie thing is a genetic issue. The Yellows are essentially in an isolated area bc California is surrounded by a lot of mountains and only occasionally to black-billed mp's get in. When they do, their genetic profile gets diluted after a generation or two. Same thing if a yellow gets out. You can see a similar issue in squirrels, especially in the Grand Canyon, there's actually a great example of genetic islands there.

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