Eagle
Nest Diaries
Part
1 /
Part 2 / Part
3
/ Part 4 / Part 5
This
page is part of our Eagle Nest Diaries
series that began in 2002 and continued in 2003, 2004, 2006, 2007, and 2008. The following photos were taken on an INHF project site along the Upper
Iowa River in 2005. By protecting this land, INHF members also helped protect a bald eagle pair's nest. The photos below show the eagle parents raising eaglets in that nest. The photos were taken with a high-powered lens by Mary Ellen Leicht. Keep checking this page as it will be updated whenever we get new information and pictures.
February
14, 2005: Action at the nest
There were 2 eagles standing on nest. Because of poor lighting
conditions, our source coundn't tell if they were matures or immatures.
February
21, 2005: Settling in?
Our source
reports seeing a mature eagle on nest--but has no way of
knowing if it "is trying it on for size, resting or actually
laying or
incubating eggs."
March
5, 2005: The Eagles Return Home
From this day to the present, a mature eagle has been on the nest
each time our source has checked. Pictures are not yet available
because our
spotters have a "lower" and "upper" site for
viewing. They are limiting
themselves to the lower area, which doesn't have good photography
angles,
until the snow is gone so they don't leave tracks that would attract
casual
hikers to the nest area. This is a very responsible choice because
well-meaning people who get too close to the nest could easily
scare the
eagles away, perhaps forcing them to abandon the nests and their
eggs/nestlings. Consequently, we've made a point to not reveal
the exact
location of this nest. If YOU should find an eagle's nest,
do not approach
or bother the birds. Stay at least 400 yards (four football fields)
away
from the nest and watch with binoculars or spotting scopes.
April
4, 2005: Eaglets Arrive!
Our sources
report seeing babies in the nest! The new arrivals seemed to be
newly hatched, although oftentimes eagle eggs laid in the same
nest won't hatch on the same day. With the spell of warm weather
we've been having, the eaglets parents have spent quite a bit
off the nest, so our spotters could see this year's brood, which
seems to contain two offspring.
These
pictures were taken the weekend of April 9th - 10th. The babies were
about a week old at that time.
Male vs.
Female
It is very obvious which adult is the female and the male. When
we first started watching the nest, we didn't know if it was the
male or the female sitting on the babies. But when the other adult
flew into the nest, we could tell it was the male. The male is
much smaller and sleeker looking than the female. We could not
see any leg bands again this year.
 Fish Again!
We also watched some of the feedings. Sometimes the female would
feed the babies and at different times the male would feed the
babies. One time as the female was feeding the babies some fish,
the male flew up to the opposite side of the nest and started
eating a different unidentifiable chunk of something. After he
had fed himself for a while, he actually started trying to help
feed the babies (from behind) as the female was continuing to
feed them. The babies were way too focused on mom's food and totally
ignored dad, so he started eating for himself again!
Delivery
One
time we saw the adult male leave the tree to the north of us and
fly down towards the river. He went out of sight of us, but we
could see the female on the nest watching and watching down towards
where he went. And then all of a sudden, we saw him flying up
to the nest with something in his feet. As the picture above shows,
he brought back what looked like dried grasses and pine needles
for bedding. He not only brought the soft nesting material up
to the nest, but also spread it around. They would also use the
bedding material and pull it up and over top of the babies like
a blanket.
Guardians
Another
very cool thing we saw was when an immature bald eagle flew over
the nest. Many different types of birds fly over or near the nest
during the day - ranging from song birds to turkey vultures to
crows to geese to various hawks. The adult - and the babies -
in the nest will watch the other birds fly by and over the nest
but never really give any type of reaction to those passing through.
But when the immature flew over, it was a totally different story!
We watched the immature flying up the river and were surprised
that one
was hanging around, but the parents of the babies had much stronger
reactions! The adult male bolted from the trees next to us and
sped towards the immature as it banked to go over the nest. The
adult then attacked the immature and they were chest to chest
fighting - talons clawing out and interlocking - and falling towards
the river when they went out of sight. We could also hear the
fierce vocalizations from both of them as they were tumbling down
through the air. The adult female in the nest was also calling
out her disapproval of the immature being so near to the nest.
It was quite the amazing sight. (Sorry, no pictures - we were
all caught up in the moment and in awe of what was happening in
such a short amount of time!)
As you can also
see from the pictures, the adults face different directions when
they are sitting. It is fun to watch when the babies get squirmy
and rambunctious underneath the parent. The parent is being bumped
up and down and is half standing up at times.
See more photos and descriptions for April 2005;
Part
1 /
Part
2
/ Part
3
/ Part
4/ Part 5
2002 / 2003 / 2004 / 2005 / 2006 / 2007 / 2008 / Eagle FAQs
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2008
Iowa Natural Heritage Foundation
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