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However, the average clutch size is 26 eggs laid by 7 different females. [4] Rhea eggs measure about 130 mm × 90 mm (5.1 in × 3.5 in) and weigh 600 g (21 oz) on average; they are thus less than half the size of an ostrich egg. Their shell is greenish-yellow when fresh but soon fades to dull cream when exposed to light.
The incubation period is 30–44 days, and the clutch size is from 5–55 eggs. The eggs are 87 to 126 mm (3.4–5.0 in) and are greenish yellow. [7] Chicks mature by three years of age. Outside the breeding season, Darwin's rhea is quite sociable: it lives in groups of from 5 to 30 birds, of both sexes and a variety of ages. [7]
In 2008, the SACC, the last holdout, approved merging the genera Rhea and Pterocnemia on August 7, 2008. This merging of genera leaves only the genus Rhea. [11] A former fourth species of rhea, Rhea nana, was described by Lydekker in 1894 based on a single egg found in Patagonia, [12] but today no major authorities consider it valid.
When sunny-side-up, egg size won’t matter much. But in batters and doughs, it matters a great deal.
“The risk of getting the H5N1 bird flu virus from eggs is minimal to none, and safe storage and cooking of eggs reduces any potential risk,” says Geeta Sood, M.D., ScM, assistant professor of ...
Kiwi are notable for laying eggs that are very large in relation to their body size. A kiwi egg may equal 15 to 20 percent of the body mass of a female kiwi. The smallest species of kiwi is the little spotted kiwi, at 0.9 to 1.9 kilograms (2.0–4.2 lb) and 35 to 45 centimetres (14–18 in). [18]
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They range in size variably, but on average measure 53–64 cm (21–25 in) in length, have a wingspan of 103–117 cm (3.38–3.84 ft) and weigh 0.63–1.4 kg (1.4–3.1 lb). [56] The Henst's goshawk (Accipiter henstii) and Meyer's goshawk (Accipiter meyerianus) do rival it in terms of wing size and body mass.