"Ostrich." National Geographic. N.p., n.d. Web. 17 Feb. 2014. <http://animals.nationalgeographic.com/animals/birds/ostrich/>.
"Ostrich." - New World Encyclopedia. N.p., n.d. Web. 19 Feb. 2014.
<http://www.newworldencyclopedia.org/entry/Ostrich>
.Ostrich Facts. Seaworld, n.d. Web. 24 Feb. 2014.
<http://seaworld.org/en/animal-info/animal-bytes/birds/ostrich/>.
"Ostrich." - New World Encyclopedia. N.p., n.d. Web. 19 Feb. 2014.
<http://www.newworldencyclopedia.org/entry/Ostrich>
.Ostrich Facts. Seaworld, n.d. Web. 24 Feb. 2014.
<http://seaworld.org/en/animal-info/animal-bytes/birds/ostrich/>.