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American Robin American Robin
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  • Robin Challenge Question #2

    Tracey Schaum (oradell@intac.com)
    Thu, 06 Mar 97 10:09:04 0000

    I think that Robins have a natural instinct to travel with same
    temperatures and climates.

    Yes, I think Robins travel with the 36 degree isotherm because all
    states with sightings are located close together and with the same
    temperature range which means it must be a 36 degree isotherm