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Old 04-22-2010, 11:50 AM   #11
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More disturbing cowbird information:

http://elibrary.unm.edu/sora/JFO/v070n01/p0055-p0057.pdf

http://www.sciencedaily.com/releases/2007/03/070305202649.htm
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Old 04-22-2010, 12:42 PM   #12
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Yikes! Mafia and farming behavior in cowbirds. Dastardly devils! 56% of nests ransacked if cowbird eggs were removed (payback is a *****!) and 20% even if the cowbird never parasitized the nest? (at least in the case of this study with warblers) I'm liking these birds less and less.
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Old 04-23-2010, 12:38 PM   #13
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Quote:
Thanks for the clarification on when to place sparrow spookers. I think it's too late for the first box, but not too late for this new one.
It is never too late to add a sparrow spooker if English house sparrows are in the neighborhood-
Sparrow Spookers
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Sent: Sunday, April 16, 2006 1:52 PM
Subject: RE: spooker

I too saw a male pulling on the mylar right after installation. He actually yanked a few strands off. Pretty soon he was perching on it. Even so, I figured better to have him worried about the mylar than worried about whether a house sparrow was going to peck his head off.
I have yet to hear of a case where a sparrow spooker was NOT accepted by bluebirds after egg laying commenced. Sometimes it helps to put it up when it's not too windy.
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Sparrow Spooker designs and instructions
This man provides directions for making our own sparrow spookers-
Sparrowtraps.net
We do not need for sparrow spookers to be this elaborate for them to be effective. A simple dowel with strips of plastic baggies taped to the back of a nest box is equally effective deterring house sparrows.
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Old 04-24-2010, 12:35 AM   #14
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Sparrow spookers aren't a big deal. You can buy a pack of streamers that go on kids' tricycle handlebars and stick them on a yard stick cut in half and that should work good enough. Duct tape it to the back of your nest box and voila!!! A home made sparrow spooker. If the streamers are too thick you can pull some of the strands out so the'll blow in the wind better.
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bluebird, bluebird eggs, bluebird nest, bluebird nest boxes, cowbird, cowbird egg, egg, nest, nestbox, sparrow spooker

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