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Bluebirds/When are bluebird eggs are not viable?

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Michigan Bluebird Society wrote at 2016-04-11 14:34:05
Eggs that are jarred, fall, are handled by a human, or are suddenly kicked by the brooding female due to disturbance may not be viable, as the sudden jerking can detach the inner white of the egg from the shell wall, causing failure. A growing embryo may suffer injury in the same way.  


Bluebirds

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Bluebird Bob Walshaw

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Questions about setting up and monitoring Eastern Bluebird houses. This includes where and how to put up houses, trouble shooting, fighting predators, especially the killer house sparrows and helping other small cavity nesters such as Chickadees, Titmice, Carolina Wrens, etc. Send mailing address to me at walshaw1@cox.net for a free 20 page Bluebird book.

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20 years with a 100+ box Bluebird trail which has been accepted as part of the Transcontinental Bluebird Trail. Talks on Bluebirds to many organizations.

Organizations
North American Bluebird Society, Audubon Society local and national, Oklahoma Bluebird Society, OK Furbearers Alliance

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Bluebird Magazine, Birds and Blooms, Oklahoma Today and many other publications.

Education/Credentials
BS, MBA, Cornell University Bird Biology course

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Blue Cross Ageless Hero, Red Cross Everyday Hero, North American Bluebird Society Awards, Oklahoma Bluebird Society Lifetime Award.

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Many

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