The Calyptophilus genus, native to Hispaniola in the Caribbean, encompasses two unique bird species known as the Western chat-tanager (Calyptophilus tertius) and the Eastern chat-tanager (Calyptophilus frugivorus). Historically grouped within the Thraupidae family, they have since been classified into their own family, Calyptophilidae, reflecting their distinct traits. The term 'Calyptophilus' is derived from Greek, meaning 'lover of hiding' – an apt descriptor for these elusive birds. Initially, both species were considered one (C. frugivorus) with the common name of chat-tanager, but they are now recognized as separate entities. The genus was first established by Charles Barney Cory back in 1884.