Scientists have discovered that the birds have another way of duping other species into raising their young: laying multiple eggs in the foreign nest. See the original article here:  Observatory: Cuckoo Finches Come Up With a New Con ; ;Related ArticlesA Disease Cuts Corn YieldsBP Trial in 2nd Phase, to Set Amount of Oil SpilledU.N. Climate Panel Endorses Ceiling on Global Emissions ;

Original article:

Observatory: Cuckoo Finches Come Up With a New Con