Wattled Crane

Taxobox
name = Wattled Crane
status = VU | status_system = IUCN3.1

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image_width = 240px
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Gruiformes
familia = Gruidae
genus = "Bugeranus"
genus_authority = Gloger, 1842
species = "B. carunculatus"
binomial = "Bugeranus carunculatus"
binomial_authority = (Gmelin, 1789)

The Wattled Crane, "Bugeranus carunculatus" is a large bird found in Africa south of the Sahara Desert.

At a height of up to 175 cm (nearly 6 feet), it is the largest crane in Africa and is the second tallest species of crane, after the Sarus Crane. The wingspan is 230-260 cm (90-102 in), the height is typically 120 cm (47 in) and weight is 6.4-7.9 kg (14-17.6 lbs) in females, 7.5-9 kg (16.5-20 lbs) in males. [http://www.answers.com/topic/wattled-crane] [http://www.savingcranes.org/wattledcrane.html] The back and wings are ashy gray. The feathered portion of the head is dark slaty gray above the eyes and on the crown, but is otherwise white, including the wattles, which are almost fully feathered and hang down from under the upper throat. The breast, primaries, secondaries, and tail coverts are black. The secondaries are long and nearly reach the ground. The upper breast and neck are white all the way to the face. The skin in front of the eye extending to the base of the beak and tip of the wattles is red and bare of feathers and covered by small round wart-like bumps. Wattled Cranes have long bills and black legs and toes. Males and females are virtually indistinguishable, although males tend to be slightly larger.

Juveniles have tawny body plumage, lack the bare skin on the face, and have less prominent wattles.

Range

The Wattled Crane occurs in eleven sub-Saharan countries in Africa, including an isolated population in the highlands of Ethiopia. More than half of the world’s Wattled Cranes occur in Zambia, but the single largest concentration occurs in the Okavango Delta of Botswana. Wattled Cranes are thought to have historically ranged over a much larger area including coastal West Africa.

Diet

All cranes are omnivorous. The principal food of the Wattled Crane is aquatic vegetation, including the tubers and rhizomes of submerged sedges and water lilies. In particular, Wattled Cranes depend heavily on the sedge Eleocharis spp. In dryer upland habitats, Wattled Cranes forage for grain, grass seeds, and insects, and they make use of agricultural fields when convenient.

Threats

Destruction, alteration, and degradation of wetland habitats constitute the most significant threats to the Wattled Crane. Hydroelectric power projects and other water development have caused fundamental changes in the species expansive floodplain habitats, and their most important food source "Eleocharis" spp. Human and livestock disturbance, powerline collisions, mass aerial spraying tsetse flies, and illegal collection of eggs, chicks and adults for food are also significant threats to Wattled Cranes throughout their range. The population is about 8,000.

The Wattled Crane is one of the species to which the "Agreement on the Conservation of African-Eurasian Migratory Waterbirds" (AEWA) applies.

References

* [http://www.savingcranes.org/species/wattled.cfm International Crane Foundation's Wattled Crane page]
*Johnsgard PA. 1983. "Cranes of the world". Bloomington: Indiana University Press. Meine CD, Archibald GW. 1996.
*"The Cranes: status survey and conservation action plan". Gland, Switzerland: IUCN.

External links

* [http://www.birdlife.org/datazone/search/species_search.html?action=SpcHTMDetails.asp&sid=2793&m=0 BirdLife Species Factsheet.]
* [http://www.savingcranes.org/species/wattled.cfm International Crane Foundation's Wattled Crane page]