High Quality Content by WIKIPEDIA articles The Formicariidae, formicariids, or ground antbirds are a family of smallish passerine birds of subtropical and tropical Central and South America. They are between 10 and 20 cm (4-8 in) in length, and are related to the antbirds, Thamnophilidae, and gnateaters, Conopophagidae. This family contains probably (see below) some 100-120 species in 1 or 2 large and a number of fairly small genera.
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