Pelecanus occidentalis - PowerPoint PPT Presentation

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Pelecanus occidentalis

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Younger birds have dark heads with whitish under parts. ... Suggests total 1995 population of 400,000 fledged birds in continental range. Bibliography ... – PowerPoint PPT presentation

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Title: Pelecanus occidentalis


1
(Pelecanus occidentalis)
  • Alena Butler
  • Michelle Floyd
  • Kristy Wales
  • period 1
  • 1/27/99

2
Habitat
  • Coasts southern U.S. to northern Brazil to
    Chile. It lives in salt bays. Mostly over shallow
    waters along immediate coast, especially on
    sheltered bays.

3
Appearance
It has a ponderous dark color. Adults have white
about the neck and head. Younger birds have dark
heads with whitish under parts. Its size,shape
,and flight indicate its habit of plunging
bill-first into water.
4
Feeding
  • CARNIVOR
  • The brown pelican eats almost entirely fish, such
    as menhaden, smelt, and anchovies, also
    crustaceans. Carp, chubs, perch, catfish, some
    salamanders and crayfish.

5
Reproduction
  • The white pelican breeds from March through June,
    and usually lays two eggs. Both males and females
    incubate the eggs. Young pelicans are fed by
    their parents. The young put their bills into the
    throats of the parents to eat partly digested
    fish.

6
Birth Size Adult Size
  • Large white bird, 50 to 70 inches long, with a
    wing span of 8 to 9.5 feet, weighing 10 to 17
    pounds. It has black wing tips and an
    orange-colored bill. Their feet are webbed to aid
    in swimming. The skin pouch is suspended from the
    lower half of the pelicans straight bill.

Birth
Adult
7
Life Expectancy
  • One captive American white pelican lived to 34
    years of age.

8
Endangered
  • American White Pelican (estimated continental
    population 1995)125,000 nests (continental)
    representing 250,000 adult birds plus estimated
    150,000 pre-breeding 1 and 2-year chicks
  • Suggests total 1995 population of 400,000 fledged
    birds in continental range.

9
Bibliography
  • Source Rappole, J.H. and G.W. Blacklock. 1994.
    Birds of Texas A Field Guide. Texas AM
    University Press, College Station, Texas.
  • "White Pelican An Endangered Species - Web Pages
    by Ray Rasmussen"
  • 1997 Encyclopedia Britannica.online
  • Photograph from "Rocky Mountain Wildlife" David
    Dahms
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