Not sure why a fascinating article under the heading "What came first, the chicken or the egg? The definitive answer" of 26 May 2006 is reported as a news item in today's daily Guardian newsletter, but anyway, the answer is: It's the egg.
The Guardian reports that Prof. Brokfield refused to comment on the question whether the panel would be conducting other chicken-related enquiries, such as why did the chicken cross the road? On that note, see sign below, spotted the other day at the new Peter Pizzeria in Leicester.
While we are on the subject, I might as well report that our own chickens are going from strength to strength.