Abundance Estimates of the Lesser Rhea Rhea pennata pennata in the Argentine Patagonia: Conservation Implications

Abundance Estimates of the Lesser Rhea Rhea pennata pennata in the Argentine Patagonia: Conservation Implications

The southern subspecies of the lesser rhea is distributed through the Argentine Patagonia and southern Chile. Habitat-loss and poaching were identified as the main threats to lesser rhea populations by the IUCN, which classified the species as “Least concern” in 2014. Although Rhea pennata pennata is among the most conspicuous wildlife across the large Patagonian rangelands, the available estim...

Gizzard impaction in lesser rhea chicks (Pterocnemia pennata) raised on farms in Patagonia, Argentina.

Impaction of the gizzard was diagnosed in 33 1-to-4-wk-old lesser rhea (Pterocnemia pennata) raised on farms in Patagonia, Argentina. The birds showed anorexia, lethargy, constipation, dehydration, weight loss, and weakness. Necropsy revealed gizzard impaction by fibrous material, sand, rocks, and rubbish. Also, excess fibrous material was observed in the small intestine, and intussusception wa...

Physical characteristics and chemical composition of Lesser Rhea (Pterocnemia pennata) eggs from farmed populations.

1. Eggs from 4 farmed populations of Lesser Rhea (Pterocnemia pennata) were studied to determine their physical and chemical characteristics. 2. None of the physical variables (weight of whole egg, yolk, albumen and shell; proportion of yolk based on egg content; proportion of shell based on entire egg weight; volume; density) showed significant differences between populations. 3. Among chemica...

Cooperative breeding between males in the Greater Rhea Rhea americana

Fleming, T.H.. Williams. C.E. Bonaccorso, F.J. & Herbst, L.H. 1985. Phenology, seed dispersal, and colonization in Muntingia calabura, a neotropical pioneer tree. Am. J. Bot. 72: 383-391. Forshaw. J.M. 1989. Parrots of the World, 3rd (revised) ed. Willoughby: Lansdowne Editions. Galetti, M. 1993. Diet of the Scaly-headed Parrot (Pionus marimiliani) in a semideciduous forest in southeastern Braz...

Histomoniasis in a captive great rhea (Rhea americana).