Animals White-faced Saki

White-faced Saki Pithecia pithecia

Pale-Headed Saki Monkey Close Up

Description

Also known as the pale-headed saki, the white-faced saki has a head and body length of 12 to 28 inches and a tail that is 10.2 to 21.8 inches long. The weight is 2.4 to 5.75 pounds. The male is uniformly black with a white crown, face and throat. The female is predominately blackish or brownish. Sakis are essentially diurnal and arboreal, descending only occasionally to lower branches or shrubs in their search for food. They seldom descend to the ground or climb to the treetops because their major predators (small cats, large snakes and avian raptors) inhabit these niches. While usually moving on all fours, they are capable of making long leaps through trees, and have been observed running in an erect posture along horizontal branches. Pale-headed sakis sleep curled on a branch like a cat, and sometimes hang by their hind feet when feeding. Sakis are monogamous.

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Range

The range of the White-faced Saki is southern & eastern Venezuela, the Guianas, and northeastern Brazil.

Habitat

White-faced Saki inhabit forest areas at elevations of 700 to 2,500 feet.

Gestation

Gestation for White-faced Saki takes about 150 days.

Litter

1

Behavior

White-faced Saki are essentially diurnal and arboreal, descending only occasionally to lower branches or shrubs in their search for food. They seldom descend to the ground or climb to the treetops because their major predators (small cats, large snakes and avian raptors) inhabit these niches. They descend vertical supports tail-first. While usually moving on all fours, they are capable of making long leaps through trees, and have been observed running in an erect posture along horizontal branches. When moving bipedally they hold up their arms with fingers extended for balance. When alarmed they can move quite rapidly. When eating mammals and birds, they tear apart their prey with their hands. They have been observed going into tree hollows to collect bats, which are torn apart and skinned before being consumed. Pale-headed sakis sleep curled on a branch like a cat, and sometimes hang by their hind feet when feeding. They travel either in family groups or alone. While usually quiet in captivity, they emit loud, penetrating calls in the wild.

Reproduction

Sakis are monogamous. Birth usually takes place in late November and December. The estrous cycle lasts about 18 days.

Diet (Wild)

Berries, fruit, honey, leaves, flowers, small mammals

Diet (Zoo)

New World monkey chow, fruit, carrots, yams, lettuce, endive, primate diet, mealworms

Conservation Status

Least Concern

Primary Threats

Human-Wildlife Conflict

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