Faced by such threats as loss of habitat, human disturbance of its nesting sites and high levels of poisons in the bodies of the fish on which it lives, America's national bird has almost become a bird known only to legend.
美國國鳥也因為遭受棲息地喪失、築巢地點受人干擾，以及賴以生存的魚體內含有大量的有毒物質等威脅，國鳥快成了傳說中的鳥了。