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The nest can contain eggs from multiple emus the number is usually between 15 and 25 eggs. [59] Female emus court the males; the female's plumage darkens slightly and the small patches of bare, featherless skin just below the eyes and near the beak turn turquoise-blue.
They are distantly related to the African ostriches and Australia's emu (the largest and second-largest living ratites, respectively), with rheas placing just behind the emu in height and overall size. Most taxonomic authorities recognize two extant species: the greater or American rhea (Rhea americana), and the lesser or Darwin's rhea (Rhea ...
Ostrich farming grew out of this need, and humans harvested feathers, hides, eggs, and meat from the ostrich. Emu farming also became popular for similar reasons and for their emu oil. Rhea feathers are popular for dusters, and eggs and meat are used for chicken and pet feed in South America. Ratite hides are popular for leather products like ...
The eggs measure about 9 by 14 cm (3.5 by 5.5 in) – only ostrich and emu eggs are larger. The male incubates those eggs for 50–52 days, removing or adding litter to regulate the temperature, then protects the chicks, which stay in the nest for about 9 months. He defends them fiercely against all potential predators, including humans.
Ostrich eggs are the largest of all eggs, [4] though they are actually the smallest eggs relative to the size of the adult bird — on average they are 15 cm (5.9 in) long, 13 cm (5.1 in) wide, and weigh 1.4 kilograms (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [5]
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Ostrich eggs in a nest at an ostrich farm, South Pasadena, ca.1900 Photograph of 13 ostrich eggs in a nest at an ostrich farm, South Pasadena, ca.1900. A few rocks are visible at left. Call number: CHS-823 Filename: CHS-823 Coverage date: circa 1900 Part of collection: California Historical Society Collection, 1860-1960 Format: glass plate ...
The ostriches and emus on the ranch were trained to eat out of a bowl, and two female ostriches were hand-raised in the store. On busy days, feeding may be restricted due to the fear of the birds overeating. [3] According to the owner, Trudy Brown, there are approximately 80 ostriches and 20 emus. [2]