Half a billion birds fly over Israel during the autumn migration.
A leading Israeli ornithologist tells the Today programme that Israel is at the junction of three continents: from the political point of view, it's a disaster (the airspace is crowded enough); from the ornithological point of view, it's heaven.
Ancient Peruvian civilisation grew mighty by harvesting guano
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The Chincha Kingdom was transporting seabird excrement from islands to
valleys as early as the 13th century, and this powerful fertiliser may have
been key...
5 hours ago
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