Cute little cattle tyrant, machetornis rixosa perched and foraging on top of capybara, cleaning symbiosis, hunting horse-fly attempting to land on capybara at ibera wetlands, pantanal natural region

machetornis flycatcher forage bird hydrochoerus hydrochaeris tyrannidae fauna wildlife pantanal perch conservation species nature rixosa habitat capybara natural animal wetland terrestrial hunt parasite south america savannah prey cavaleiro brazil national horse fly symbiosis ibera reserve feed wild mammal provincial insect pasture argentina stand walk suiriri park eat tyrant fur epecuen clean cattle