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In This Issue
-Robin Cam by Dan & Mary Dietrich
-Ask Steve
-International Migratory Bird Day (IMBD)
-COUPON: Woodlink Oriole Cafe
-Our Recent Bird (& Mammal) Walk
-NEW! WBC Catalog Web Site
-The New Neighbors

 Welcome to
"Boulder Backyards"
           
 
Wild Bird Center of Boulder adheres to a strict privacy policy that means your information will not be shared, sold, or otherwise distributed. If you do not wish to receive any further eNewsletters with Offers and Resource information, click the "SafeUnsubscribe" link at the bottom of this page.  We value your relationship!
                                    
 
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birders
bird watchers (that's us)
Wild Bird Center Saturday Walks:


From 7:30 am (promptly)
to 9:45 am (approximately)

Every Saturday year-round.
Every last Saturday of the month we travel further afield than normal
and return a little later.
Call for more info: 303-442-1322

Birdwalks



Wild Bird Center
of Boulder
Quick Links
 
Xcel Energy BirdCams
 
One fun way to participate in the lives of local birds is by viewing Xcel Energy's
                  
               Web Cams
  
                                owl cam
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eagle_cam2
                                 eagle cam
Robin Cam
 
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 Robin Cam by Dan & Mary Dietrich
 
Two of our customers, Dan and Marty Dietrich in Firestone, have set up a web cam on a robin nest at their home. If you would like to check in with their robins go to: www.esysdev.com/robincam


    

  Nature Photography
              by
  Wendy Marie Stuart
 
  Heron_cold

"COLD" - heron

Visit our store to see a
gallery of Wendy's matted and framed prints

and  greeting cards for all occasions or


Photo Credits

"Celebrate Birds in Culture" by IMBD

"Mountain Lions at Golden Ponds, Longmont, CO" by Kieth Brunell

"Robin Cam" by Dan & Mary Dietrich

"COLD" by Wendy Marie Stuart

"Robin" by Wendy Marie Stuart

Ask Steve

Q: I have a robin that keeps trying to get into my house. How do I stop it from pecking at my window? Do I need to get some hawk decals?
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A:
The hawk decals help reduce window collisions for birds that are flying at the window. Your robin is not flying into the window, it is stopping at the window and attacking it. Hawk decals won't help your situation, but I know what can.

Your robin is not trying to get into the house or call you out; it's fighting with its own reflection. It sees another (male) robin in its territory and wants it gone. The outside surface of a window can make a great mirror. When the robin sees its reflection it flies at the window to drive off its competitor and because it can't figure out the physics involved, it fights with its reflection all day long.


This behavior will stop as soon as the female has laid all the eggs and starts to incubate them. This is the time, at which, extra pair copulations by the female will not effect the genetics of the clutch (i.e. your mate fooling around with another robin won't produce an egg that is not yours).

                                                     robin
robin
We hear about this behavior every spring, most often with robins and other thrush species like bluebirds, but it can occur with a wide variety of species. Sometimes the birds will bloody themselves fighting so vigorously and long with their reflections. To curb this behavior you will need to take away the reflection. The easiest way, I think, to take away the reflection is simply soap the outside of the window by rubbing a bar of soap on it. Then in a couple weeks this behavior should be passed so just wash the window and everything is back to normal. You can also cover the outside of the window with something like paper to block the reflection. Pulling the curtains or placing things on the inside will usually not be helpful because the reflection is produced by the outside surface of the window.


It may have a favorite window that you could cover and stop it from pecking, but it may just move to another window. You may not be able to completely eliminate the behavior, but at least you can reduce it and save the bird from continuously beating itself


Thank you!
on our
20th Anniversary
from all of us at YOUR
Wild Bird Center!

We couldn't have done this without you! Twenty years is a long time in anyone's book and we owe our success to you -- our customers, compatriots, fellow birders, and friends. A hearty thank you to you all!  
 
Steve, Wendy, Marlene, & Bill
staff photo new

         
International Migratory Bird Day (IMBD)
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photo from IMBD

Walden Ponds Open Space, May 9th 7:30-11:00am
Cottonwood Marsh Picnic Shelter

The Wild Bird Center and Boulder Bird Club will celebrate IMBD this year on May 9th. This year's theme for IMBD is 'Birds in Culture' which gives us an opportunity to reflect on how important birds and bird symbols are to us. We have several things planned for the morning. As always, we will be providing shade grown coffee and both wholesome and naughty treats for the morning. Groups will head out birding about every hour and we will be involved in a big sit at the picnic shelter. We will also have IMBD educational materials available and sell coffee, books, and IMBD shirts. Please join us some time during the morning for this great spring event and please carpool if possible. Call the store at 303-422-1322 if you have questions. To find out more about the significance of IMBD go to the IMBD Website.  IMBD is a zero waste event.
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Dawn Chorus Walk
May 9th  5:30-8:00am

Walden Ponds Open Space-Cottonwood Marsh

Before IMBD enjoy a spring tradition -- a Dawn Chorus Walk. There are some birding experiences you just can't experience unless you get up early in the spring. Join Wild Bird Center Staffer Marlene Bruning on this unique and magical experience. After the walk enjoy the IMBD celebration (and its coffee). Call the Wild Bird Center at 303-442-1322 if you have any questions about Dawn Chorus.
-----  Coupon  -----  Coupon  -----  Coupon  -----

Woodlink Oriole Café
SAVE $8.00
oriole_cafe2_woodlink
 

Click here to see this item on our new Product Catalog

Mention CODE WBC0507. Call (303) 442-1322 or bring in to redeem. Some restrictions may apply.  Not valid in combination with other promotions. Expiration date: 6/06/09.
 
          -----  Coupon  -----  Coupon  -----  Coupon  -----  
Our Recent Bird (& Mammal) Walk

I always say that every bird walk is a different experience and that you can see something new on every one. Some, of course, are more dramatic than others. Last Saturday the 2nd, we had one of those dramatic events at Golden Ponds in Longmont. We have had a lot of great and unique wildlife experiences over the last 20 years, but we have never seen a mountain lion until last week.

About a half an hour into our walk someone saw the cat stretched out on a willow limb about 40 feet away. Most of our group of 18 people had already walked past it when Julie B first spotted it. We watched it for about 5 minutes and then decided to leave it alone. It remained in the tree all day long despite the large stream of MS Walkers at Golden Ponds that day. It was a wonderful thing to see and a little scary to see it in suburban Longmont. Keep those eyes peeled-you never know what you might see!

           Mountain Lion at Golden Ponds Longmont - 05.02.09                                   
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     lion2

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NEW!  NEW!  NEW!
Wild Bird Center of Boulder
Catalog Web Site


We have been working hard to launch a catalog web site for the Boulder Store. We aren't quite finished getting it all together, but we invite you to check it out at www.wbcboulder.com. For all you locals who get seed delivered, you can use the site to figure out an order and delivery charges. Feel free to email us with your product questions.
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           Click Here To View Our New Product Catalog!
The New Neighbors
My new neighbors moved in on April 17, 2004, and they've been here ever since. I see them almost every day, but I'm still not sure what to think of them. Sometimes he seems pretty bossy and mean to my other neighbors, but most of the time he's just in a hurry and doesn't care what anybody else is doing. She can be a little bit snippy also, but generally gets along.

My new neighbors are Eurasian Collared-Doves and they are moving across North America with lightning speed. If they haven't moved into your neighborhood yet, they soon will. Their historic range is thought to be India and its surrounding countries. In the 1900's they began a range expansion that took Europe and the Middle East by storm, inhabiting over 2.5 million square kilometers (965,000 mi˛) in 40 years. It is unclear why this expansion happened, but now it is happening in North America. Several Eurasian Collared-Doves were released in the Bahamas in 1974. In ten years, these fewer than 50 birds had multiplied into 10,000 and had made their way to Florida. It only took them 20 years after that to end up in my Longmont, CO yard. In 2004, records indicate that Eurasian Collared-Doves had expanded their range to 22 states. One year later that number was 27 states. Where will they stop this expansion? In Norway, they breed as far north as the Arctic Circle so it is not unreasonable to think that they will soon be a resident of southern Alaska!
                                                                       Eurasian Collared-Dove
               European Collared Dove
Are Collared-Doves good neighbors? Introduced and non-native species sometimes have a competitive advantage in a new environment which they exploit to dominate an ecosystem. We've seen it in plants like tumbleweed, Dame's rocket, teasel, and Russian Olive. We've seen it in animals like eastern fox squirrel, bullfrog, zebra mussel, and moose. Introduced birds like the house sparrow, European Starling, and rock pigeon have all gained a mostly negative reputation because of their ecological dominance in their new North American home. Some speculate that Collared-Doves will occupy the niche left by the exterminated passenger pigeon and thus not create extensive ecological havoc. Most concern relates to their impact on mourning doves. One study in Tennessee showed that Eurasian Collared-Doves were not aggressive toward mourning doves and they did not have a great negative impact. Conversely, a Florida study showed that large flocks of Collared-Doves did negatively impact mourning dove numbers. It appears at this early stage in their expansion that they are occupying a niche in the suburbs between the city-rock pigeon niche and the country-mourning dove niche. Most other concerns relate to them becoming a possible agricultural pest because they consume seeds of most anything. Many states, including Colorado, are considering a hunting season on Eurasian Collared-Doves, not only as a new revenue stream, but also as a means of controlling their numbers.

As we enter spring, the sounds of mourning doves evoke lilac-scented, gentle, early mornings. The slow cadence of a mourning doves' haunting song draws you out to enjoy the splendors of spring. The song of the Eurasian Collared-Dove is tonally very similar to a mourning dove's, but its cadence is much more emphatic and faster with fewer notes compared to a mourning dove. Collared-Doves also have a flight call which I can only describe as the 'barfing dove'. It is a harsh vocalization where the dove seems to strain as it pours out one big 'blah'. Not a pleasant noise. Mourning doves also produce a mechanical noise with their wings as they take off. Eurasian Collared-Doves do not produce this wing whir.

A Eurasian Collared-Dove is a mostly unpatterned, light buff colored bird about the same size as a rock pigeon. It has dark primaries which give the wings a contrasting dark edge when perched. Of course, they have a dark band or collar on the nape of their neck. In flight, the Collared-Dove shows a large, broad tail with white corners. They really show off their tails in long, graceful, gliding display flights. Unfortunately, they sometimes finish these beautiful flights with the 'barfing dove' pronouncement.

In my yard, the Eurasian Collared-Doves are a common year-round fixture, but are they neighborly? They seem to be, but I still worry about them pushing out my mourning doves. (Maybe they'll push out the rock pigeons!) If they haven't moved into your neighborhood yet, they will and soon. Just hope they turn out to be polite.

Visit The Cornell Lab of Ornithology "All About Birds" site to learn more:
Eurasian Collared-Dove
Mourning Dove
Rock Pigeon
Contact Info:
Steve Frye, Owner     (303) 442-1322
Wild Bird Center of Boulder
1641-28th Street  Boulder, CO 80301