Pair of Southern Screamers.

Southern Screamer lives in wetlands such as flooded fields, meadows, marshes, lakes and lagoons. During winter, it frequents drier and agricultural areas, and are found in Bolivia and southern Brazil to northern Argentina.
If alarmed or threatened, Southern Screamer flies straight up into a tree, and utters loud alarm calls. It has two sharp, curved spurs on each wing, protruding from the bend of the wing. It uses them for fighting against rivals or predators, or during defence of its territory. These spurs are renewed regularly. Southern Screamer is able to fight against larger animals than it, and particularly against hunting dogs.
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