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Tiger heron

If you go around and watch carefully, you´ll notice that many species of birds fish. Each one has a different technique. The rufescent tiger-heron (Tigrisoma lineatum, socó-boi) has a standing-still way of fishing. Sometimes they wait for several dozens of minutes without any apparent movement until a suitable fish is in reach and then they precisely and deadly spear it.
Because of their mooing calls, we call them socó-boi (cow-heron) in Portuguese. 

A successful early morning hunt ...