Bluebird and Small Cavity Nester Conservation
Sialis - Bluebirds and other small cavity nesters
 
bluebirds

eggs

Why does the parent move the eggs around?

Periodically rotating and rearranging eggs in a nest ensures equal heating. It also prevents the shell membrane from adhering to the shell, which could interfere with hatching.

More information:


As might be expected of creatures so heavenly in color, the disposition of bluebirds is particularly angelic. Gentleness and amiability are expressed in their soft musical voice. Tru-al-ly, tru-al-ly, they sweetly assert when we can scarcely believe that spring is here; tru-wee, tur-wee they softly call in autumn when they go roaming through the countryside in flocks of azure.
- Neltje Blanchan, Birds Worth Knowing, 1917


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May all your blues be birds!

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