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24436  Member Activities / Birthdays / Re: Happy Birthday Nora on: 25-Nov-09, 06:17:36 PM

HAPPY BIRTHDAY NORA
24437  Other Nature Related Information / General Nature Discussion / Osprey-Fade Creates STL Headaches: Md on: 25-Nov-09, 11:27:57 AM


Here's a dilemma. Ospreys have made a nest atop your STL tower. The nest isn't affecting anyone; in fact, it has drawn a crowd to watch the raptors. Things are fine — until your STL starts to fade.

Fig. 1: Any thoughts on how to discourage birds from perching on your STL feed?
An inspection from the ground reveals that the birds are using the STL dipoles as perches as well as tables across which to lay fish while feeding.

Bruce Blanchard is engineering manager for Salisbury University's WSCL(FM) and WSDL(FM) in Salisbury, Md. The college has adopted these birds, which return each year; there's even a webcam so students and faculty can watch the activity. (The solution isn't a hunting rifle!)

Bruce wonders if you have had similar issues with nesting birds and STL antennas. If so, how did you solve it? Bruce doesn't think the tower will handle the wind load of radomes on each STL antenna; are there other options?

One thing that comes to mind, based on similar problems with satellite dishes, is to use something like a CoolWhip container to snap around the dipole. But the question of keeping it watertight could be an issue. Another thought is changing the dipole polarity. Vertical polarity makes the dipole less of a perch, but depending on paths, this may not be feasible.
24438  Other Nature Related Information / General Nature Discussion / How Hummingbirds Get Their Nectar With Tiny ‘Straws’ on: 25-Nov-09, 11:24:08 AM
How Hummingbirds Get Their Nectar With Tiny ‘Straws’


It is harder to suck liquid through a thin straw than a wider one because of viscosity.
Yet a hummingbird is able extract nectar from a flower by wrapping its tongue into a hummingbird-size straw. How?

The answer is that the hummingbird is taking advantage of the forces of surface tension, the same forces that cause water to bead into droplets instead of spreading outward when sitting on a hard surface.

“I’ve been looking at the big picture of drinking strategies in nature,” said John W. M. Bush, a professor of applied mathematics at the Massachusetts Institute of Technology. “This is a big theme of mine now.”

Last year, he showed how some shorebirds used surface tension to draw water droplets up their long, thin beaks into their mouths.

For the latest research, Dr. Bush and his co-workers found that when a hummingbird stuck its tongue into a flower, the tongue, about three-quarters of an inch long, curled up into a cylinder just one twenty-fifth of an inch in diameter because of surface tension.

“The hummingbird’s tongue looks like a straw with a slot cut in it,” Dr. Bush said.

Also because of the surface tension, the slot in the cylindrical tongue zips closed, beginning from the tip. The nectar is drawn upward, and the cylinder fills.

The hummingbird then scrapes its tongue clean and swallows. Amazingly, it repeats this process 20 times a second as it feeds.

The hummingbird tongue research, which Dr. Bush presented on Sunday at a meeting of the American Physical Society’s Division of Fluid Dynamics, is not just a biological curiosity.

The findings could be useful to researchers building miniature chemistry laboratories — so-called labs on a chip — that have to move tiny droplets of chemicals around.

“Nature has already solved these problems,” Dr. Bush said.
24439  Other Nature Related Information / General Nature Discussion / Re: Real Bambi and Thumper on: 25-Nov-09, 11:06:00 AM

Wow, that's just too precious. Thanks. Just makes me angry why anyone would hunt any of these 2 beautiful animals. Sad
24440  Other Nature Related Information / Falcon Web Cams / Re: another article on Buckeye on: 25-Nov-09, 09:14:14 AM
Buckeye, believed to be one of the country's oldest and most prolific peregrine falcons, died last week after apparently striking a building near its urban nest on the Terminal Tower.

A woman walking at the intersection of West Third Street and Huron Avenue discovered the injured male on the sidewalk and called Harvey Webster, director of wildlife resources at the Cleveland Museum of Natural History.

Webster said the unidentified woman managed to scoop up the bird and rush it to the museum. But Buckeye was dead by the time she arrived, said Webster, the overseer of the falcons' nesting box 12 floors above Public Square.

"He had a heck of a life and an incredible run during his 12 years on the Terminal Tower," Webster said.

Buckeye was 14 years old, having hatched in 1996 atop the Rhodes Office Tower in downtown Columbus. Officers with Ohio's Division of Natural Resources attached an identifying leg band on the chick before he left the nest.

As an adult, he flew north and spent two years on the Case Western Reserve University campus before pairing up with a female, Zenith, on the downtown Cleveland skyscraper.

In 2001, a second female, hatched in Pittsburgh and identified only as S/W, arrived in Cleveland and killed Zenith. She then joined Buckeye at the nest.

Between the two females, Buckeye sired 34 peregrine chicks, an amazing accomplishment for a species that was endangered for decades, Webster said.

Buckeye was getting old, but he hadn't missed a beat incubating the eggs or providing food for his chicks, Webster said.

Webster speculated that Buckeye's fatal collision might have come during an aerial battle with another male. The falcons can dive at up to 200 mph.

The males may have been battling for S/W's affections. The past weekend, downtown falcon watchers had observed S/W in the company of a new male. He has a leg band, but no one has been able to read its identification numbers yet.

Webster said Cleveland's falcon enthusiasts aren't as willing as S/W to adopt the interloper. They had become attached to Buckeye over the years, and have been mourning, he said. (sounds familiar) Sad

Many Buckeye fans have been posting tributes on-line, and Scott Wright -- who dubbed him "Mr. B" -- downloaded dozens of photographs that he shot of the bird from close range.

http://www.falconcam-cmnh.org/news.php
24441  Rochester Falcons / Rochester Falcons News / Re: Main Camera captures Archer and Beauty at Times Square building nest box on: 25-Nov-09, 08:16:22 AM
Archer & Beauty


24442  Rochester Falcons / Rochester Falcons News / Re: Main Camera captures Archer and Beauty at Times Square building nest box on: 25-Nov-09, 08:00:07 AM
I have restored access to the entire 2009 archive of rfalconcam pictures. These are the pictures that appear on the rfalconcam camera pages. They don't have the upgraded banners and thumbnails that appear on my site.

Take a trip down memory lane to early April for the Powers building cameras and mid June for the Times Square cameras.

http://shaky.50megs.com/rfc-archive.html

Thanks Shaky!!

The bait and the thief







and a  whirly head. The crows had a great meal that day and NO falcons   Sad
24443  Anything Else / Totally OT / Re: Thanksgiving on: 25-Nov-09, 06:53:53 AM
I like this!

But I have a serious question about Thanksgiving.
I just saw on the calendre that Thanksgiving is tomorrow.
Is it ok to wish everybody a happy Thanksgiving days before it is Thanksgiving?
I cannot remember that we did that before.
To be clear, we don't celebrate Thanksgiving in Europe, so I have no idea.
 thanksgiving greetings Aafke


Sure Aafke, I've been hearing it all week from people.
24444  Anything Else / Totally OT / Re: Thanksgiving on: 24-Nov-09, 11:45:26 PM
 I'm thankful that QUEST has someone watching out for her...even if she is wearing a cloaking device.

Joyce



LOL..like in Harry Potter....love it Joyce.
24445  Other Nature Related Information / Falcon Web Cams / Re: Peregrine in Heidelberg on: 24-Nov-09, 10:29:56 PM
Very nice pics Annette...thank you.  clap
24446  Member Activities / Pets / Re: Falcon Watcher's Pets on: 24-Nov-09, 08:04:41 PM
Thank you all!  I couldn't get the pic into the post so I used the link to her set.  I've checked the faqs.



Oh I  heart Cookiecat...thanks for sharing.
24447  Anything Else / Totally OT / Re: Thanksgiving on: 24-Nov-09, 07:58:56 PM
Wishing everyone a very Happy Thankgiving!!

and a very Happy Thanksgiving to you also!  Hope everyone enjoys the day with their family and their friends.   thanksgiving

Although we've had many set-backs this year, we've also had many things happen that we should be very thankful for.  Let's list them.  I'll start..............

1.  I am thankful that Mariah is safe and well after her territorial battle.

I would be very thankful if "Kaver" came home.  crying

I'm thankful for all the wonderful people here (new forum) and the Kfalconcam board for all their knowledge and for being so much "FUN". Thanks guys.   clap

I'm sure you'd all be thankful if I didn't post so much..  Shocked
24448  Other Nature Related Information / Falcon Web Cams / Re: Canada Falcons: All but Rhea Mae & Tiago, (they have their own thread) on: 24-Nov-09, 07:46:38 AM
http://www.peregrine-foundation.ca/programs/education/hallfame.html

These are amazing  clap
24449  Other Nature Related Information / Falcon Web Cams / Re: Canada Falcons: All but Rhea Mae & Tiago, (they have their own thread) on: 24-Nov-09, 07:08:11 AM
 Perched Adult Peregrine Humber Bay Park
November 21, 2009 - International, National and Local News
Frank Butson Reports:

On Nov 21, Walter and I were down at Humber Bay Park East in Torontos westend. It is right at the lakeshore. The adult Peregrine flew past me as I was searching for other birds. It flew out of my lines of sight,so I thought that was pretty cool and continued my search. As I continued on some time later,I spotted the silhouette of a raptor perched in a tree. Looking into the sun,I was fairly certain it was the Peregrine,but wasnt sure. I ventured abit closer and confirmed it was a Peregrine. Walter and I began a slow approach,not wanting to spook the bird. After 2 ladies walked right under the tree oblivious to the birds presence,I moved as close as I dared. I could not see a band on the birds left leg at all,and it was well seen on at least 2 or 3 occassions.  The Peregrine was likely digesting a meal,as it had a full crop. It sat for at least 10-15minutes while we watched. It watched various small ducks intently,despite appearing full.It was a great find and really made my day. Please enjoy the video I put together.

http://tinypic.com/player.php?v=dsi11&s=6

Posted on November 22, 2009 9:21 am
Observation for International, National and Local News
Beautiful Bird
24450  Other Nature Related Information / General Nature Discussion / Re:Whooper update on: 24-Nov-09, 06:50:50 AM

Sunday, November 22, 2009

The annual whooping crane migration, which will bring the endangered birds through Southern Illinois and Western Kentucky, is under way.

Led by ultralight aircraft from Wisconsin to Florida, the 20 cranes hatched this year started their journey Oct. 16 from the Necedah National Wildlife Refuge in Wisconsin and are now in northern Illinois. Locally, the birds are expected to make overnight stops in Wayne County, Ill., and Union and Marshall counties in Kentucky.

The group of 20 birds in this year's flock is the largest group in the nine-year history of Operation Migration. Today, there are an estimated 350 whooping cranes in the wild, up from fewer than 20 birds in the early 1940s.

Operation Migration's ultralights have escorted more than 100 whooping cranes on the 1,285-mile trip to imprint the migratory route on the juvenile birds. Officials with Operation Migration say that in flight, the trip takes about 23 days. However, weather delays typically stretch the journey over several weeks.

The birds are in Livingston County, Ill., today and will make stops in Piatt and Cumberland counties before reaching Wayne County in Southeastern Illinois later this month or in early December. It all depends on the weather.

The exact location of the stopover point in Wayne County will be kept secret until the birds are ready to lift off for their next destination.

The secrecy is imposed to keep human contact with the birds at a minimum. However, Operation Migration officials are expected to announce the birds' liftoff location so the public will have an opportunity to see the birds in flight as they begin the next leg of their journey.

After several weather delays last year, the skies cleared and the migrating birds skipped their stopover in Wayne County to make up time.

The birds' destination is the Chassahowitzka National Wildlife Refuge on Florida's Gulf Coast.

Officials with Operation Migration say their goal is to reach a self-sustaining level of 125 birds and 25 breeding pairs.
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