Yellow-crowned Night-Heron (Nyctanassa violacea)

The Yellow-crowned Night-Heron is a species where the plumage differences between adults and juveniles is pretty marked. They inhabit rivers and marshes, but can be seen resting on other places during the day. I saw two juveniles in Playa Montezuma; they were foraging near a small creek that goes into the beach, covered in dark shade due to almond trees.

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Juvenile bird standing on a fallen tree

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It probably felt safe because the shade of the big trees meant it was really dark

The pictures below were taken during a boat tour in the Tárcoles River, on June 18th, 2017. The tour was guided by Randall Ortega, an expert birder and owner of Mangrove Birding Journey.

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An adult individual captured from far away; note the striking face pattern, totally different from the juvenile

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This juvenile stood for half an hour on this branch, entirely motionless, it did not even change posture

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Another juvenile was nearby in the mangrove and stayed motionless as well for quite some time

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