http://www.esa.org/fieldtalk/field-talk-to-fly-or-not-to-fly-diving-birds-shun-air-travel/ audio interviews go into the field with ecologists Thu, 28 Mar 2013 19:51:26 +0000 hourly 1 http://wordpress.org/?v=3.5.1 http://www.esa.org/fieldtalk/field-talk-to-fly-or-not-to-fly-diving-birds-shun-air-travel/comment-page-1/#comment-113 Liz Gado Mon, 16 Feb 2009 20:26:10 +0000 http://www.esa.org/fieldtalk/?p=27#comment-113 Can we say that the birds have opted not to fly or because of ther habits and years of evolution the birds lost their original capacity and gain another one?
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