We report on the properties of two well known bound excitons (BE) in silicon carbide, the D-1-BE and a hydrogen related BE, here called the II-BE. We find that in both cases the BE may be regarded as a pseudo-donor, a strongly localised hole serving as the positive core. In order to study the donor-like states of the BE, we use photoluminescence excitation (PLE) spectroscopy. Where possible, we have compared our results with the predictions of effective-mass-theory.