The existence (or hypothetical existence) of Turkey Becan has been debated for years. Thanks to recent experiments by Starise, we can conclude that Turkey Becan does, in fact exist. Whether or not it should, is another debate...
On another note (Am), those speculating on the temporal nature of becan need not worry. The Laws of Becandynamics state that no Becan is ever lost, even when it falls on the floor. Getting it back once it's been eaten is a bit problematic, but it's not lost.