Red howler (Alouatta seniculus)
 
 Primate Factsheets: Red howler (Alouatta seniculus)
 
 
 Photo: Roy Fontaine
 Preferred feeding trees have trunks between 20 and 29 cm (7.9 and 11.4 in) in
 diameter (Yoneda 1990).  Lower strata, including those close to the ground, are
 sometimes used for feeding but the species is frequently and most often found in
 higher forest strata.  When
 sympatric
 with other primates, howlers prefer higher
 strata than the other species in the habitat (Soini 1986; Yoneda 1988; Peres
 1993).  Finally, red howlers can live in very small forest patches and secondary
 growth (Hernández-Camacho & Cooper 1976).  The altitudinal limit of
 the red howler distribution is 3200 m (10498.7 ft) in the central Andes
 (Hernández-Camacho & Cooper 1976).
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