173 

 Appendix U). Among birds at Ejido X-Hazil y Anexos, thicket tinamous ranked first among four taxa 

 in percent volume of fruits and seeds in the diet and ranked fourth in the total number of taxa of food 

 items consumed. Elsewhere, the diet consists of seeds, fruits, and insects (Chavez Le6n, 1983; 

 Lancaster, 1983). 



Great curassows are diurnal frugivore-herbivores that forage on the ground (Karr et al., 1990; 

 Paynter, 1955a, 1955b; Slud, 1964). They occur individually or in small groups (Delacour and 

 Amadon, 1973). Primarily terrestrial, great curassows are found in ravines, shrubby areas, and humid 

 woodlands (Amadon, 1983; MacKinnon Vda. de Monies, 1989). 



At Ejido X-Hazil y Anexos, plant material (primarily fruits and seeds) composed 98.5% (23 

 taxa reported), by percent volume, of great curassow stomach contents, whereas animal material 

 composed < 0.0% (trace amounts of two taxa reported). A total of 26 taxa of food items were 

 reported (Figure 5-1; Appendix V). Among birds at Ejido X-Hazil y Anexos, great curassows ranked 

 second among four taxa in percent volume of fruits and seeds in the diet and ranked first in the total 

 number of taxa of food items consumed. Elsewhere, the diet consists of fruits, seeds, succulent leaves, 

 and insects (Amadon, 1983; Chavez Le6n, 1983; Mendez, 1979). 



Plain chachalacas are diurnal frugivore-herbivores that forage on then foliage in the canopy 

 (Paynter, 1955a, 1955b; Slud, 1964). They are social and usually occur in small groups (Delacour and 

 Amadon, 1973). Primarily arboreal, plain chachalacas are found in a variety of dry habitat types, 

 including fallow areas, agricultural fields, and forest edges (Leopold, 1977; MacKinnon Vda. de 

 Montes, 1989; Slud, 1964). 



At Ejido X-Hazil y Anexos, plant material (primarily fruits and seeds) composed 100.0% (20 

 taxa reported), by percent volume, of plain chachalaca stomach contents, whereas animal material was 

 not reported. A total of 20 taxa of food items were reported (Figure 5-1; Appendix W). Among birds 

 at Ejido X-Hazil y Anexos, plain chachalacas ranked third among four taxa in percent volume of fruits 

 and seeds in the diet and ranked second in the total number of taxa of food items consumed. 

 Elsewhere, the diet consists of fruits and seeds (Leopold, 1977). 



