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Version 1.0

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Orinoco Goose Oressochen jubatus

Lisa Davenport, Whaldener Endo, and Ken Kriese
Version: 1.0 — Published March 8, 2013

Diet and Foraging

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Orinoco Goose is herbivorous, feeding primarily on the leaves and seed-heads of plants. On beaches in Manu National Park, Peru, Orinoco Geese show a preference for stripping the seed heads of "Indian goosegrass" (Eleusine indica) over other beach plants, although they take a wide variety of species available, and consume both seeds and leaves. They also are frequently observed feeding on aquatic algae in stagnant water along the margins of the river, in connecting channels between the river and oxbow lakes, or in stagnant pools on river beaches (Davenport, unpublished observations).

In the llanos of Venezuela, Kriese (2004) found that Orinoco Geese preferred patches of "cespitoso" to all other subcategories of llanos savanna communities. Cespitoso is characterized as areas of low palatable grasses including Paratheria prostrata, Reimarochla acuta, and Eragrostis hypnoides that forms in low places and along river banks.

Foraging Behavior

Recommended Citation

Davenport, L., W. Endo, and K. Kriese (2013). Orinoco Goose (Oressochen jubatus), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.origoo1.01