
Photo
Credit: Jim Greaves
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Olivia the Olivas
Great Horned Owl is back in her nest. This picture was taken by Jim
Greaves in mid-March, 2006. We won't know how many eggs she's sitting
on until they hatch.
Watch
this page as Olivia's family grows.
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Each year between
late February and early May, a family of great horned owls comes back
to the Adobe
to nest in one of the eucalyptus trees. A display regarding the owls is
located in the Richard Senate Exhibit Hall.
Great
Horned Owls like to make their nests in the natural cavity of a tree.
The nests may be lined or unlined with leaves.
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Photo Credit: Dave Furseth
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April 2, 2006: Have
the
egg(s) hatched?
Their breeding season is late November in the south to early April in
the north.
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Photo Credit: Dave Furseth
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April 2, 2006: Ah
ha! At
least one egg has hatched. Are there more?
A
Great Horned Owl will lay between one and five eggs. The female
incubates the eggs for a period of 26 to 35 days.
The nestlings are altricial and downy. Altricial means that the young
hatch while they are basically helpless.
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Photo Credit: Dave Furseth
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April 2, 2006: Is
this a
second chick or the same one?
Both
the male and female care for the owlets. But, the female broods the
hatchlings for the first three weeks while the male brings food.
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Photo Credit: Dave Furseth
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April 7, 2006: The
little
guy is either very brave or he's hungry. Is he the only one?
The
nestlings eyes open on the tenth day and leave the nest after four or
five weeks. They can fly satisfactorily after nine or ten weeks, but
the adults feed them for a long period after that.
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Photo Credit: Dave Furseth
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April 7, 2006:
Finally!
Now we know there are two of them. It will be fun watching these guys
grow.
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Photo Credit: Dave Furseth
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April 15, 2006: The
little
guys are growing. Soon, their down will turn to feathers. Now, they are
old enough for Mom to leave the nest to hunt.
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Photo Credit: Dave Furseth
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April 30, 2006:
Feathers
are beginning to show through the down. Mom is out hunting, but where
is his nest mate?
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Photo Credit: Dave Furseth
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April 30, 2006: Ah
ha! His
nest mate felt brave enough to fly to a nearby olive tree. You can be
sure Mom is somewhere nearby keeping an eye on him.
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Photo Credit: Guy
Webb
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It's 2007 and they're back!
And this year they were early. This photo was taken the
first week of March, 2007. And the mother owl has already left the
nest. But, rest assured that she is somewhere near.
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Photo Credit: Guy
Webb
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March 21, 2007: One little guy keeps watch while the other grabs a nap.
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