As recently shown by Gerald Mayr (2003) however, the morphological evidence best supports a position for the Shoebill close to Steganopodes, the clade that includes frigate birds, pelicans, gannets, cormorants and anhingas (traditional Pelecaniformes is not monophyletic as tropicbirds are apparently closer to procellariiforms than they are to members of Steganopodes).    From Wordnik.com.  [Archive 2006-05-01] Reference

Pelecaniformes.    From Wordnik.com.  [Bird lists] Reference