YOU CAN WATCH THESE LIVE CAMS ON FULL SCREE
BY PRESSING SYMBOL AT RIGHT BOTTOM OF SCREEN. 2009 nesting season events: 6 February:
First egg is laid! 9 February: Second egg is laid! 13 February:
Third egg is laid! 24 February: Black trash bag blows into nest. (A
good reminder not to litter!) 25 February: Good news! The trash bag
blew out of the nest. 21 March: The first egg hatches! An
extraordinary number of fans are now viewing the eagle cam daily,
resulting in some delays and connection problems with the video.
Please bear with us as we try to remedy this situation. Bald Eagle
Nesting Information Sexual maturity and breeding generally coincide
with attaining adult plumage (head and tail becoming all white,
beak yellow, and the eyes white), from 3 to 5 years of age. Nest
site selection and building can begin as early as late September in
Oklahoma. Several nests may be constructed by a single pair in the
same territory. Nests are typically located in one of the taller
trees in an area, just below the crown, about 3/4 the way up the
tree, against the trunk or in a sturdy fork of the tree. Assorted
interwoven sticks up to 1 inch or more in diameter make up the bulk
of the nest. The nest is lined with soft grass, moss, or other fine
materials. Nests can take months to complete, are added to each
year, and in exceptional cases can end up weighing several tons.
One clutch of 1-3 eggs is laid per year. However, a replacement
clutch may be laid in the event of a loss during laying or early
incubation. Incubation begins sometime from December or January in
Oklahoma and lasts for 33.5 days, while the hatching process can
take up to 2 days. If more than one egg is present, the others
hatch at intervals of 2-3 days. This results in eaglets of
different sizes with the first hatched eaglet being the largest, a
difference that is maintained until growth is completed before
fledging. After fledging eagles may gain weight, but they do not
grow very much larger dimensionally. Female Bald Eagles, as with
many birds of prey, average larger in size than males; however,
there can be an overlap between the sizes of the sexes. Size is
almost the only visible difference between them. Eagles nesting in
the northern part of their range also average larger in size than
those from the southern parts of their range. About a third, on
average, of Oklahoma Bald Eagle nests fail, either during
incubation or brooding, for mostly unknown reasons. Causes of nest
failure could be due to food shortage, inclement weather, human
disturbance, predators, and environmental contaminants. Development
of Bald Eagle Young Week One: At hatching, the young are covered
with a light gray down and have limited mobility. Their eyes, dark
brown in color, are closed, but open after a few hours. The female
parent does the majority of the brooding while the male parent
provides most of the food for the family. Aggressive antagonistic
behavior can appear shortly after hatching wherein the oldest,
largest eaglet tries to dominate or even kill its sibling(s). Week
Two: The second down plumage, darker in color, begins to replace
the first. At the end of this period thermoregulation is attained;
that is, the eaglet can maintain its own body temperature under
normal weather conditions without brooding from an adult. Week
Three: Black contour feathers on back, shoulder, breast and wings
begin to emerge. Week Four: Maximum body growth nearing completion;
flight feather development underway. Week Five: Male and female
parents bring relatively equal amounts of food. Parents begin
spending more time away from the young and often perch in nearby
trees. Week Six: Young are able to tear pieces of food off and feed
themselves, and begin to stand and walk. Weeks Eight - Twelve:
Nestlings begin "branching". They flap their wings while perched on
the nest and hop onto nearby branches, practicing and building up
flight muscles, coordination, and landing skills. Most of
Oklahoma's Bald Eagles fledge between 11 and 12 weeks after
hatching. After the first flight the eaglets may return to the nest
a few times to spend the night (roosting) or to get food brought
there by the adults. Some nestlings fall to the ground and remain
there before gaining flight ability. Parents usually continue to
feed the young on the ground; but in this location, the chicks are
highly vulnerable to predation. After fledging the young are still
dependent on the adults to feed them for a period of up to a couple
of months until they gain the experience and skills to find and
catch their own food. Radio-telemetry studies of a few Bald Eagles
reared in Oklahoma show that they migrate north during the hottest
months of the summer to cooler climates such as the Great Lakes
area or Canada. The initial flagship project of the Sutton Center
was the reestablishment of breeding Bald Eagles in the southeastern
U.S. How did we do it? To find out about these intensive and very
successful restoration efforts, click the page link below. Sutton
Center Bald Eagle Restoration Efforts