great egret (ardea alba) and neotropic cormorant (nannopterum brasilianum) in cienaga de pijino lake

great egret ardea alba neotropic cormorant nannopterum brasilianum pijino habitat tropical fauna river water species birding colombian wilderness marsh america avian lake biodiversity colombia cienaga beak feathers bird natural animal nature wild ornithology birdwatching wildlife swamp season animals