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| description |
The Great Egret is a wading bird with white
feathers. It has a long neck and very long, black legs. Its bill is long,
thick and yellow. An adult Great Egret is more than 3 feet tall. |
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| fun
facts |
During the late 1800's and the early 1900's, the
Great Egret was hunted almost to extinction. Its beautiful white
plumes (feathers) were used to decorate ladies' hats. In 1903,
Egret plumes were so popular they were worth twice their weight
in gold! Millions of egrets, herons and other birds were killed
every year just to decorate women's hats.
In the late 1880's two wealthy Boston women
decided to put a stop to it. They invited all the well dressed
ladies of the city to come to tea parties. They made them
promise not to wear hats with bird feathers on them. This
movement spread from women to men and from state to state. This
was the start of the Audubon Society. Two hundred years later the
Audubon Society is still hard at work to protect birds all
around the world. You can join if you want to help! |
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| life
cycle |
The breeding season usually begins in
mid-April. Great Egrets come to nesting grounds called rookeries.
Here they build nests of sticks and twigs in medium-sized trees. The
male begins building the nest. He then brings materials to the
female who finishes it. The mated pair often return to the same
nest year after year. They repair or rebuild it as needed. The
female lays 4 to 5 oval, blue-green eggs. The male and female
take turns sitting on the nest for 23 to 24 days.
When the hatchlings emerge,
they have white down (soft, small feathers) and pink bills. Both
parents take care of the young. After about 3 weeks the young
egrets start walking on branches near the nest. About 40
days after hatching, they begin to take short flights. |
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| ecology |
During the day Great Egrets forage (hunt for
food) alone or in small groups. They forage in wetlands and
other shallow waters or mud. They like the marshy shores of
lakes and ponds, or slow moving streams. You will also see them in
farmers' irrigation ditches and flooded cropland. In vernal
pools, Great Egrets feed on Algae, Rotifers, Copepods, Seed
Shrimp, Water Fleas, Aquatic Beetles, Aquatic Snails, Damselfly
and Dragonfly larvae, the tadpoles and adults of Pacific Chorus
Frogs, California Tiger Salamanders and Garter Snakes.
Great Egrets are at the top of the food web.
Few predators want to attack such a large bird, with such a big
beak! Great Egrets avoid most predators by roosting in tall
trees at night with other egrets and herons. By nesting in large
groups, the birds can warn each other of predators. The young of
Great Egrets are taken from their nests in rookeries by
Raccoons, Great Horned Owls, Red-tailed Hawks and other hawks.
Coyotes, Red-tailed Hawks and other hawks will also prey on
Great Egrets while they are foraging. |
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| investigate |
If you want to watch Great Egrets, visit their
feeding habitats. Be sure to stay away from rookeries. Egrets do
not like visitors when they are nesting. You must move very
slowly and quietly. The birds are very shy. They will fly away
if you come too close. A pair of binoculars will help you see
better without scaring them away.
April and May are good times to watch for
Great Egrets at vernal pools. When big or deep vernal pools are
drying up, Great Egrets fly in for a big meal. The larvae of
Damselflies, Dragonflies, and Aquatic Beetles are large and abundant
in big pools. There are also plenty of tadpoles and frogs, and Garter
Snakes nearby to hunt them. When a Great Egret spots a Garter Snake,
the hunter soon becomes the hunted. Imagine how a Great Egret gets a
long snake down its long throat!
Any easy way to see Great Egrets is to watch
for them along the road. You will often see them in rice
paddies, wet fields or ditches. See how many other species of
wading birds you can find in the same places. What critters
probably live in the water where you see Great Egrets foraging? |
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