BREEDING RHEAS<i>Rhea americana</i>AT NORFOLK WILDLIFE PARK

Wayre, Philip

doi:10.1111/j.1748-1090.1966.tb01761.x

Cited by 6 publications

(7 citation statements)

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“…The rhea chicks averaged 439 g (15j oz) in weight when just out of the shell, comparing well with an average of 383 g (13i oz) at Norfolk Wildlife Park, Great Witchingham, England (Wayre, 1966). Their weight had increased to an average of 595 g ( I lb 5 oz) within a week's time, and to 1,020 g ( z lb 4 oz) at two weeks of age.…”

Section: R H E a Ssupporting

confidence: 54%

Breeding the rhea and the emu Rhea americana and Dromiceius novachollandiae at Winnipeg Zoo

Bowthorpe¹,

Voss²

1968

International Zoo Yearbook

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Section: R H E a Ssupporting

confidence: 54%

Breeding the rhea and the emu Rhea americana and Dromiceius novachollandiae at Winnipeg Zoo

Bowthorpe¹,

Voss²

1968

International Zoo Yearbook

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“…Several authors had described hatching and rearing of Greater (Krishne Gowda, 1962;Kaczmarek and Pohorecka, 1965;Wayre, 1966;Bowthorpe and Voss, 1968;Brown and Kimbell, 1972;Bruning, 1973b) and Lesser (Kruczek, 1968;Bruning, 1973b) rheas in zoos. Also, a twin embryo has been reported by Bruning (1970) in Lesser rhea.…”

Section: Incubation and Developmentmentioning

confidence: 98%

The rhea, a ratite native to South America

Sales¹

2006

Avian & Poul. Biolog. Rev.

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Knowledge of Greater (Rhea americana) and Lesser (Pterocnemia pennata) rheas, both native to South America, are important for the purpose of conservation of wild populations as well as the potential commercialisation of captive bred animals.Whereas the different subspecies of Greater rheas are distributed through Argentina, Bolivia, Brazil, Paraguay and Uruguay, habitat of Lesser rheas are mainly limited to the Argentine and Chilean Patagonia. The two Andean subspecies (Pterocnemia pennata garleppi and Pterocnemia pennata tarapacensis) of Lesser rheas are endangered in the wild. Information on divergences between rhea and other ratite taxa are still inconclusive. Anatomy and standard metabolism of rheas in general are in agreement with that of other ratite and avian species.Vigilance is an important component of daily activities. In contrast to adult birds, several different vocalizations can be distinguished in young chicks. Rheas, that reach sexual maturity between 20 and 24 months of age, can be described as polygynandric in that males are simultaneously polygynous, whereas the females are sequentially polyandrous. Only 5 to 6% of the male population bred successfully each year in the wild. Rheas are ground-nesting birds with females laying eggs for up to 12 different males during the laying season, and males incubating the eggs for a period of around 42 days. Rheas are characterised by high rates of nest desertion (65%) commonly associated with egg predation, orphan eggs laid far away from active nests, and egg stealing between males. In the wild males took care of the chicks for 4 to 6 months, with chick adoption from other broods a common phenomenon. As with other ratites rheas grow at exceptionally slow rates, with a final mature live weight of around 25 kg, depending on gender. The digestive system of the rhea is characterised by a relative huge caeca and colon, which may serve as fermentation chambers for the utilisation of fibre. Diseases and parasites commonly found in other ratites also occur in rheas. Conservation and commercialisation of rheas are hampered by a lack of knowledge about the biology and requirements of these species.

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“…Swedish ornithologists have been breeding Eagle Owls in captivity and releasing the young by several hacking techniques since the mid-1950s (Magnusson 1957;Wayre 1970Wayre , 1975Broo 1977Broo , 1978.…”

Section: Hackingmentioning

confidence: 99%

“…for the Osprey -Gale and Forkis 1974, Garber et al 1974, Henny 1977, Kahl 1971, Roberts 1969 for the Bald Eagle -Beebe 1976, Robards and Taylor No Date; for the White-tailed Sea Eagle -Helander 1975 for the Mauritius Kestrel -Temple 1977; for the Peregrine Falcon -Armbruster 1978, Burnham 1979, Cade and Temple 1977, Fyfe and Armbruster 1977, Lindberg 1975, Monneret 1978, Walton 1979a; for the Eagle Owl- Broo 1977, Wayre 1970; and for various species -Chaney 1979, Mallette and Schlorff 1978, Olendorff and Kochert 1977, Olendorff and Zeedyk 1978, U.S. Bureau of Land Management 1979 Nearly all other projects involve narrower, single-method approaches to raptor conservation which collectively contribute significantly to the more integrated management programs.…”

Section: Closing Remarksmentioning

confidence: 99%

Raptor management, the state of the art in 1980 /

Olendorff¹,

Call²,

Motroni³

1980

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The exploitation by raptors of large-scale land conversions points out the opportunistic nature of some birds of prey and reminds us that far more raptor management in this country has occurred inadvertently than has occurred purposefully -at least through the decade of the 1970s. Of particular note is the concentration around and extensive use of newly created reservoirs and dam outflows by Ospreys ( Pandion haliaetus ) and Bald Eagles ( Haliaeetus leucocephalus ) (e.g.,

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BREEDING RHEASRhea americanaAT NORFOLK WILDLIFE PARK

Cited by 6 publications

References 0 publications

Breeding the rhea and the emu Rhea americana and Dromiceius novachollandiae at Winnipeg Zoo

Breeding the rhea and the emu Rhea americana and Dromiceius novachollandiae at Winnipeg Zoo

The rhea, a ratite native to South America

Raptor management, the state of the art in 1980 /

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