Cattle tyrant bird makes cleaning symbiosis on Capybaras when grazing at pasture

capybara cleaning symbiosis tyrant bird behavior cub mother grazing eat grass pantanal field pasture animal slow motion feed fur mammal big rodent wetland swamp south america nature wildlife fauna brazil herbivorous hydrochaeris hydrochoerus hairy rodentia zoology environment argentina paraguai marsh habitat food masticate esteros del ibera carpincho capivara flycatcher machetornis relationship cattle