This bird order houses many colorful birds, such as kingfishers, bee-eaters, rollers, motmots and todies. There is very little literature on hybridization in the Coraciiformes.
Introgression between two subspecies of the Dwarf Kingfisher (Ceyx erithaca) has been documented (Lim, Sheldon & Moyle, 2010; Sims, 1959).
An intergeneric hybrid between Amazonian Motmot (Momotus momota) and Rufous-capped Motmot (Baryphthengus ruficapillus) in Brazil has been morphologically described (Marcondes et al., 2013). Another intergeneric hybrid between Amazonian Motmot and Rufous Motmot (Baryphthengus martii) was reported in the Amazonia National Park (Cerqueira et al., 2020).
Amazonian Motmot (Momotus momota) and Rufous-capped Motmot (Barypthengus ruficapillus)
References
Cerqueira, P. V., Gonçalves, G. R., & Aleixo, A. (2020). Two intergeneric hybrids between motmots from the Amazon forest: Rufous Motmot (Baryphthengus martii)× Amazonian Motmot (Momotus momota). Ornithology Research, 28(1), 57-60.
Lim, H. C., Sheldon, F. H. & Moyle, R. G. (2010). Extensive color polymorphism in the southeast Asian oriental dwarf kingfisher Ceyx erithaca: a result of gene flow during population divergence? Journal of Avian Biology 41, 305-318.
Marcondes, R. S., Silveira, L. F., de Oliveira, D. F. N. & Cardoso, G. (2013). Occurrence of hybrids between Momotus momota and Baryphthengus ruficapillus (Momotidae) in central Brazil. Wilson Journal of Ornithology 125, 674-679.
Sims, R. (1959). The Ceyx erithacus and rufidorsus species problem. Journal of the Linnean Society of London, Zoology 44, 212-221.
[…] Coraciiformes […]