Most species of true vireos occur in subtropical, tropical, and montane forests of Central and South America, but these species are too numerous and diverse to deal with here in any detail. One representative is the ashy-headed greenlet (Hylophilus pectoralis), a species found in the tropical forests of Guyana, Surinam, Brazil, and Bolivia.
The shrike vireos are relatively stout, tropical birds with a heavy, hooked bill. The chestnut-sided shrike vireo (Vireolanius melitophrys) occurs in tropical rain-forests of Mexico and Guatemala.
The pepper shrikes also are more stout than the true vireos, and have a laterally compressed, hooked bill. The rufous-browed pepper shrike (Cyclarhis gujanensis) occurs in open forests from Mexico to Argentina.
Science EncyclopediaScience & Philosophy: Verbena Family (Verbenaceae) - Tropical Hardwoods In The Verbena Family to WelfarismVireos - North American Species Of Vireos, Vireos Elsewhere, Vireos And People