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  2. Ostrich egg - Wikipedia

    en.wikipedia.org/wiki/Ostrich_egg

    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]

  3. Emu - Wikipedia

    en.wikipedia.org/wiki/Emu

    The emu (/ ˈ iː m juː /; Dromaius novaehollandiae) is a species of flightless bird endemic to Australia, where it is the tallest native bird. It is the only extant member of the genus Dromaius and the third-tallest living bird after its African ratite relatives, the common ostrich and Somali ostrich. The emu's native ranges cover most of the ...

  4. Common ostrich - Wikipedia

    en.wikipedia.org/wiki/Common_ostrich

    Ostrich eggs are the largest of all eggs, [68] 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 kg (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [69]

  5. Ostrich - Wikipedia

    en.wikipedia.org/wiki/Ostrich

    Ostrich eggs and meat have been used by humans for millennia. Ostrich oil is another product that is made using ostrich fat. Ostriches are of the genus Struthio in the order Struthioniformes , part of the infra-class Palaeognathae , a diverse group of flightless birds also known as ratites that includes the emus , rheas , cassowaries , kiwis ...

  6. Ratite - Wikipedia

    en.wikipedia.org/wiki/Ratite

    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 ...

  7. Bird egg - Wikipedia

    en.wikipedia.org/wiki/Bird_egg

    Eggs of: ostrich, emu, kiwi and chicken. Egg size tends to be proportional to the size of the adult bird, [citation needed] from the half gram egg of the bee hummingbird to the 1.5 kg egg of the ostrich. Kiwis have disproportionately large eggs, up to 20% of the female's body weight. [18]

  8. List of largest birds - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_birds

    Eggs laid by the ostrich are the largest in the world, weighing 1.4 kg (3.1 lb). The emu ( Dromaius novaehollandiae ) of Australia reaches 1 to 1.3 m (3.3–4.3 ft) at the shoulder with a full height of 150 to 190 cm (59–75 in).

  9. Cassowary - Wikipedia

    en.wikipedia.org/wiki/Cassowary

    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.