We highlight similarities between recently discovered Rotating Radio
Transients and X-ray Dim Isolated Neutron Stars. In particular, it is shown
that X-ray Dim Isolated Neutron Stars have a birthrate comparable to that of
Rotating Radio Transients. On the contrary, magnetars have too low a formation
rate to account for the bulk of the radio transient population. The
consequences of the recent detection of a thermal X-ray source associated with
one of the Rotating Radio Transients on the proposed scenarios for these
sources are also discussed.Comment: 5 pages, accepted to MNRAS Letter
