Dulidae: Palmchat
The Dulidae consists of just one species, the Palmchat, which is endemic to Hispaniola and its satellite islands. This monospecific family is most closely related to several other small, largely frugivorous families that comprise a peculiar avian guild: the waxwings, Hawaiian honeyeaters, silky-flycatchers, Hylocitrea, and Hypocolius.
This family’s confinement to Hispaniola lacks an obvious explanation. Within its limited range, the Palmchat is one of the commonest species, a habitat generalist that thrives in developed areas, seemingly adapted to living anywhere in the tropics.
References
Latta, S., C. Rimmer, A. Keith, J. Wiley, H. Raffaele, K. McFarland, and E. Fernandez. 2006. Birds of the Dominican Republic and Haiti. Princeton University Press, Princeton, N.J.
Roberson, D. 2000. Bird Families of the World: Palmchat, Dulidae, http://creagrus.home.montereybay.com/palmchat.html. (Accessed June 3, 2019.)