Loggerhead Kingbird (Tyrannus caudifasciatus) [XC46647]
by Daniel Lane from Casa Cubuy, El Yunque NP, Puerto Rico, Puerto Rico (call, duet, calls, duet calls)
Loggerhead Kingbird (Tyrannus caudifasciatus) [XC48517]
by Jim Holmes from Hacienda Juanita's, W of Maricao, Puerto Rico, Puerto Rico (call, duet, calls, pair duet calls)
Subspecies
Closest relatives of genus may be Empidonomus and Tyrannopsis. Recent molecular-sequence data indicate present genus is monophyletic and sister-group to clade that includes Empidonomus and Griseotyrannus. There are two main clades within genus, loosely corresponding to "tropical species assemblage" and combination of "W" and "E" species groups of earlier authors, but with some exceptions. Affinities of present species uncertain. Probably closest to Giant Kingbird (Tyrannus cubensis). Phylogenetic analyses indicate it is either basal to remainder of the ingroup (Tyrannus in this case) taxa, or basal to monophyletic "eastern and western species assemblage" that includes Cassin's Kingbird (Tyrannus vociferans), Western Kingbird (Tyrannus verticalis), Eastern Kingbird (Tyrannus tyrannus) and Scissor-tailed Flycatcher (Tyrannus forficatus). Subspecies based mainly on insular distribution.