FYI: interesting article on european cuckoos and how the female incubates the egg ~31 hours before laying it! This insures that it hatches before the other eggs in the parasitized nest!






Subject: Fw: Why cuckoo eggs hatch first


European scientists have made a fascinating discovery:
http://esciencenews.com/articles/2010/09/22/researchers.crack.cuckoo.egg.mystery




__._,_.___