  Stellar mass black holes are formed in the field, and are observed in
binaries. Population synthesis estimates for the formation of BH-PSR binaries
suggest these may be observed, but with very large formal uncertainties in the
formation rate. In globular clusters, exchanges and binary interactions present
more channels for BH-PSR formation, while ejection through recoil can remove a
large fraction of the initial black hole population. A BH-PSR system ought to
be observed in the near future, most likely in a globular cluster.
