FN*Swallow emitter

It is cheap, that is its main advantage. It is a nice idea to use particles to make a flying bird. Yes it is usable. I was persuaded to buy because the description says it is modifiable but the ability to do so is only one small aspect. All the functionality is done by a particle script and that is not modifyable and the owner has no control of the way it works. There is a ball which you rez. A bird flies out in a straight line, then back. It then repeats in a different direction. It does not look natural. The best result was to rez the ball in a treetop.