  In this talk, we briefly review a series of recent works on singly heavy
baryons, based on a pion mean-field approach. In the limit of the infinitely
heavy quark mass, heavy baryons are governed mainly by the light degress of
freedom. Taking the number of colors to be infinity, a heavy baryon arises as a
state consisting of $N_c-1$ valence quarks bound by the pion mean fields
created self-consistently. Within this framework, we present the results of the
mass spectra of the charmed and bottom baryons, and their magnetic moments. The
behavior of the electromagnetic form factors will be also mentioned.
