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We establish the existence of martingale solutions to a class of stochasticconservation equations. The underlying models correspond to randomperturbations of kinetic models for collective motion such as the Cucker-Smaleand Motsch-Tadmor models. By regularizing the coefficients, we first constructapproximate solutions obtained as the mean-field limit of the correspondingparticle systems. We then establish the compactness in law of this family ofsolutions by relying on a stochastic averaging lemma. This extends the resultsobtained by Karper, Mellet and Trivisa in the deterministic case.

Existence of martingale solutions for stochastic flocking models with local alignment