Chestnut-sided Shrike-Vireo

The chestnut-sided shrike-vireo (Vireolanius melitophrys), sometimes called the honey-browed shrike-vireo, is a species of bird in the family Vireonidae, and probably the largest member of the entire family. A widespread species of subtropical and tropical moist montane forests, this species is found from Jalisco and San Luis Potosí, Mexico in the north to southern Guatemala. == Taxonomy and systematics == One of four species within the genus Vireolanius. The exact relationships of Vireolanius to other members of Vireonidae are not fully resolved, but it appears to be one of the basal groups within the New World Vireonidae along with Cyclarhis possibly Hylophilus. Within the genus Vireolanius, the chestnut-sided shrike-vireo appears to be the outgroup with respect to all other shrike-vireos. Two or three subspecies are recognized, depending on the taxonomic list being used. The type specimen of V. m. goldmani is alleged to be an immature of V. m. melitophrys, in which case it should be considered a junior synonym of V. m. melitophrys. == Description == === Size === One of the largest species in Vireonidae, with a length of 16.5 to 18 cm (6.5 to 7.1 in) and a mean body mass of 34.7 g (1.22 oz). Sexes…