Mylar flags do not deter white-tailed deer from feeding areas.

Belant, J.L., L.A. Tyson, T.W. Seamans, and S.K. Ickes. 1997.  Mylar flags do not deter white-tailed deer from feeding areas.  Journal Wildlife Research 2:210-212.  

Belant_et_al_1997b.pdf