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The Gray-winged Trumpeter is one of three closely related chicken-like birds in the family Psophiidae, all of which are endemic to South America. The Gray-winged Trumpeter is odd-looking and very vocal, and is commonly encountered in the forest understory where they forage for fruit and insects. They are often found near Amerindian settlements, where they are tamed and kept as sentinels and for their reputed snake-killing abilities. Gray-winged Trumpeters are unusual in that they are one of a handful of polyandrous cooperative breeders.