We revealed some effects of change of the flow regime around the some probably non-fragmentating along the investigated path segment bodies of the most bright Prairie network fireballs. The effects are displayed as a sudden increase of the coefficient of the body-deceleration work into the flow of the luminous energy. The coefficient is increased almost by two orders of magnitude. For some bodies of the fireballs, a rotation with an angular velocity of order of one revolution per second is found and verified by the numerical modeling.