On the evening of October 21 I was watching Time Warp. Jeff or the other guy threw a chicken through a rotating propellor. I don't know what those guys know about airplanes or propellors, but the chicken was thrown through the wrong side of the propellor. The blade angle and the direction of rotation were blowing air toward the chicken thrower. It can be seen that the propellor actually deflected most of the chicken back toward the thrower? Unless a chicken can fly much faster than an airplane, it would never enter the propellor arc in the direction it was thrown. The propellor was on the engine backwards. As a pilot and a builder of a homebuilt plane, I know what I am talking about.

I would like to see what happens when you use your smoke machine to A Dyson propellorless fan. Here is a link to the fan I am talking about.
http://www.dyson.com/fans/default.asp

Also tr06 is correct about the chicken gooing in the wrong side, I am an HVAC technician and I am assuming you had a setup reason for that. With outdoor condenser fans blowing outward I have never experienced any kind of animal getting into a fan. Rats getting into a cooling tower, yes, but anything else , no.