Welcome - Thank you for your interest in the Cascades
Raptor Center and for your
support. This is our third
e-Newsletter.
If you do not wish to receive this occasional e-mailing, please reply to
this with Unsubscribe in the subject line. For more information,
visit the CRC web site at
www.eRaptors.org.
Case Study: Osprey 05-113 -
On August 9th,
2005, we received a call from a concerned citizen that lives off Camp
Creek Road in Springfield. She had found an
osprey that was hanging out on the ground along the road and not
flying. One of our volunteers drove out to the site and was able to
catch the flightless bird. It was a young osprey that seemed to have
left its nest a little too early. In the nearby field there was a huge
osprey nest on a telephone pole. Some babies could be seen in the nest
along with the parents flying overhead.
The volunteer brought the
osprey back to the center so that we could do an exam and figure out
whether the bird could be put back into the nest. An uninjured young
bird’s best chance is with its parents, who can teach it to hunt and
give it a fighting chance. This bird, however, was extremely thin, had
a lot of external parasites, and its feathers had not completed growing
in yet. Because of its low weight, we knew we had to fatten the bird up
so it would have the energy to complete the feather growth process and
have enough reserves to begin learning how to fish.
We immediately began tube
feeding the young osprey a formula developed for emaciation cases. It
contains simple essential nutrients, easily digestible materials, and
lots of fluids to hydrate the bird. The day after coming to the center,
the osprey was moving on to small fish. It is often hard to get osprey
to eat while in captivity, so it was great to see her readily taking
these small fish. We continued with the tube feedings for an additional
day and the osprey began gaining weight. After six days in our
intensive care unit, the osprey had gained enough weight to become
really restless and we were able to move her to one of our smaller
flight cages. The feathers were still not completely grown in and we
knew if we tried to return her to the nest so close to fledging time,
she would probably jump out again to get away from us - plus the attempt
to put this one back might cause the other ones to fledge prematurely
also.
At this point, we decided
to wait until her feathers grew all the way in and hoped to return her
to her nest site when her siblings started learning how to hunt so she
could join them. As August passed and we entered September, we
carefully watched her feather progress and were keeping our ears out for
word on the osprey family.
September 11th
came and the osprey’s feathers were well in, she weighed a good amount,
and was flying well in our 100' flight cage. I called the finder for a
report on the rest of the family. They had left the nest and the finder
had only been seeing them over the ridge by her house - but had seen
them as recently as the day before. She was confident we could release
the young osprey there and she could learn to hunt with them. My
husband and I jumped into the car with the osprey in a box and drove to
the Camp Creek Road site. When we arrived, there were no ospreys to be
seen near the nest or over the ridge. I knew that the bird’s only
chance depended on being around other ospreys to learn how to fish.
The finder suggested that
we drive along a side road that goes by the McKenzie River. We found a
few nest platforms but didn’t see a single osprey. On our drive back to
the Eugene area, we drove by two other nest sites, one in Glenwood and
the other in the Skinner’s Butte area. Again, no osprey. We had been driving for
about 3 hours now looking for a suitable release site and the young
osprey was getting pretty restless. It was imperative that we find some
osprey for her to model and learn her hunting skills before embarking on
her migration south.
Our last chance was Fern Ridge
Reservoir, to the west of Eugene. Because the Army Corp of Engineers
is working on the dam, the only access to the lake required us to
drive all the away around to the park on the far west side. We pulled
into the parking lot, walked down to the water, and began searching
the skies for osprey. Suddenly we both saw one at the same time.
I ran back to the car, grabbed the box containing the osprey and heavy
leather gloves, ran back to the water line and got the osprey out.
We saw the osprey come back to make another attempt to catch a fish
and I set the young osprey loose. She flew beautifully out over the
water. It was an incredible feeling to release this bird that had arrived
so thin that we were not sure she would survive and then to see her
join another bird in perfect flight. -- Erica Broderick
Late Babies
- Well, the
Willamette Valley is experiencing a record explosion in the vole
population, and it’s having an impact on predators! For years, humans
believed that the numbers of predators controlled the numbers of prey,
but it’s actually the other way around. The mild winter of 2004-05 and
the wet spring apparently created ideal conditions for the voles to
multiply... voles are rodents, with a blunter nose and shorter tail than
most mice - but the same ability to reproduce and the same important
role in the food chain.
And with the high numbers
of voles, the raptors (and probably the mammalian predators as well) are
having large clutches, with many youngsters surviving and, in terms of
barn owls, having more than one clutch. We had 13 young barn owls come
in during October! Six from one nest that was located on a 2x4 between
two walls - a space so small that four of them had badly irritated hock
joints from sitting in their own droppings. We were able to get two of
them back to their parents, in a nest box that the Springfield Country
Club immediately built and put up close to the place where the parents
were entering the maintenance shop. We also gave those adults one older
youngster from a sawmill.
Then another five came in
from a barn torn down at a site being developed for
houses, that had no place left to put up a nest box... and we’ve put two
of those in that Springfield Country Club box. And then another
fledgling, covered with dirt and oil from the welding room of a
manufacturing plant! At the end of October, we have four inside, still
working on their hock sores, and two out with our foster parent owls ...
but we’re seriously thinking of slowly filtering them all, two at a
time, into the Country Club box. Barn owls can’t count, but we don’t
want to overload the parents and jeopardize the survival of the babies.
If we don’t, we’ll probably have to over-winter them - and we’ll
definitely be keeping at least three of them, plus an adult that just
came in with a broken wing.
Speaking of over-wintering,
it looks like we’re starting out with a few birds that’ll be with us for
awhile. A young turkey vulture (another late baby whose parents
may have decided to leave on migration without him, as he couldn’t fly
yet) came in so thin and loaded with
parasites that his feathers are very ragged. Because feathers have a
blood supply as they are growing in, whatever is going on with the body
affects the feathers and can cause weak spots in the vane and even all
the way across the shaft - called ‘hunger traces,’ ‘stress marks,’ or
just plain ‘feather checks.’ This bird is actually
dropping feathers and because he was almost hard-pinned (i.e., feathers
finished growing in) when he was left behind, the weak spots are very
high on the feathers. We need to find him some company, though! Also
here for the winter are an immature red-tailed hawk, picked up by a
rescuer who saw it hit by a semi-truck, who has only two tail feathers
left and needs to grow those in before being able to hunt effectively,
and an adult red-tail that was shot. Right now we have these three
together.
We’re placing a
non-releasable barn owl (who came in as a fledgling with a broken wing
and leg, both healed but not usable) with a nature center in New Jersey,
and are working two sharp-shinned hawks (both collisions with windows)
and a merlin (broken wing) through the physical therapy of larger and
larger cages. And we just got in a barred owl with a broken beak,
and two hawks with ruptured crops! We do see crop ruptures periodically,
when a bird with a very full crop hits a window or gets hit by a car -
but only one every few years, in my personal experience. These two, a
red-tailed hawk and a sharp-shinned hawk, both came in the same day,
within minutes of each other.
Autumn is the time of
trauma cases ... but I’m hoping the vole population stays high so we
don’t see the typical winter starvation!
Speaking of costs of
feeding the birds: Any help with the groceries would be much
appreciated! We feed mice, rats, chickens, quail, fish and rabbits -
plus mealworms and crickets. Whole, small animals are essential for
these obligate carnivores - and variety helps to ensure good nutrition.
We are grateful for a $2500 grant from
The Harris Foundation
that enabled us to buy a rack of breeding cages for mice (we were going
through about 1500 mice a month this summer with all our barn owl
orphans!) And we’ve got other applications ready to go out for help
purchasing equipment to expand our ability to raise chickens (our least
costly food - the birds typically get these young roosters three times a
week), plus start a quail breeding operation. We currently buy 200
quail every three weeks ... Together, this equipment could save us some
$9000 a year on our food bill! We’d welcome any help towards those
purchases, too!
New Facility
- Things are moving along, with the addition of Ray Dodson, an architect
with WBGS here in Eugene, to our planning team. Ray has put us together
with two other WBGS staff members, one with expertise in sustainability
and one in marketing, a possible contractor, and introduced us to an
economist whose firm does feasibility studies for this kind of project.
We hope to have bids from two groups who do the research to determine
the viability of the project: given its estimated construction costs,
on-going expenses, estimated visitor numbers, gate receipts, educational
programs, other income sources. They’ll contact similar organizations
around the country and factor in local economic issues and, we’re sure,
come out with a positive prognosis!
Another group is putting
together an estimate of what it would cost to do a feasibility study on
raising the capital we need. This is also an important step as it helps
us identify areas of concern to potential donors, and address them in
strategic planning and in the actual campaign, and also helps us get a
feel for levels of potential participation. Having outside firms do
these important studies adds credibility when we launch the capital
campaign - it’s also something they do all the time and we’ve never done
before, so it frees us up to continue the planning process (and running
the day-to-day operations). So in the meantime, we’ll be looking for a
grant to fund these feasibility studies..
We spent about 3 hours
with Ray last week going room by room, building by building, and all the
cages, determining square footage and any special needs, as a
preliminary plan on which to base a construction cost estimate. My
dream goal is to have us up and running on-site in time to entertain the
thousands of visitors coming to Eugene for the pre-Olympic track trials
in the summer of 2008... but there’s a lot that would have to happen
first!
The holidays are coming!
If gift-giving is part of your holiday traditions, I hope you will
consider doing some shopping with us. Here are some suggestions...
We
have just received a small supply of a numbered, limited edition art
book:
North American Endangered & Protected Species.
This is an
over-size, leather-bound book with leather case, published in 1995,
filled with original artwork of 80 species listed under CITES (the
Convention on International Trade in Endangered Species of Wild Fauna
and Flora) - from raptors to whales to endangered orchids. Originally
planned as the first in a series of six, one for each continent, with
net proceeds to go to funding wildlife law enforcement, this North
American volume became the only one completed before the death of the
publisher whose dream it was. Originally priced at $500, we are selling
them for $45 plus $25 for handling and shipping, if they are not picked
up here. With only 2500 published, this is truly a magnificent
collectors’ item.
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Sponsorship of one of our education birds
in the name of a loved one or friend. Adopting one of our education
birds includes a year’s membership (and free admission to the center),
information on that bird and its species, and acknowledgement on the
bird’s enclosure. This is a wonderful gift for someone who has
everything, including a love of birds! Adopting one of our
glove-trained program birds includes a special one-on-one visit with the
bird and its handler, by appointment. See
http://www.eraptors.org/gowild.htm
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Gift
Sponsorship of a Raptor Experience:
an educational program with live birds, brought to a classroom or a
field trip for a classroom coming to CRC. See
www.eraptors.org/education.html.
You can pick your own
classroom (e.g., your child’s or grandchild’s class) or you can donate
the money directly to our ‘scholarship’ fund, which we make available
to schools or groups like The Child Center who may not otherwise
be able to offer this wonderful experience to their children. Thank
you for helping us bring an enriching experience to the children of Lane County!
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Stuffed animals, puppets, t-shirts or sweatshirts
... come check out our gift shop for great ideas that will benefit the
birds and help you whittle down your gift list!
We’ll also be getting a
print newsletter out next month.

May winter find you
well and warm!
--Louise
Shimmel