A male robin will be more diligent in caring for its young if the eggs its mate lays are a brighter shade of blue. A male robin will be more diligent in caring for its young if the eggs its mate lays ...
Scientists are testing the hypothesis that blue eggshells (unlike dark colors) both shield the interior from UV radiation and prevent the egg from heating up. People have always wondered why many ...
Sentinel & Enterprise: Why are robin’s eggs blue? Same reason we bruise
Dear Pet Talk: I don’t have pets but keep active birdfeeders, so all the birds are my “pets in the wild.” Why do robins lay blue eggs? — Bird Lover Dear Bird Lover: I concur with you about wild birds ...
Sun Sentinel: How an eight-sided ‘egg’ ended up in a robin’s nest on an Illinois tree farm
In the spring, robins living on an Illinois tree farm sat on some unusual eggs. Alongside the customary brilliant blue ovoids they had laid were some unusually shaped objects. Although they had the ...
How an eight-sided ‘egg’ ended up in a robin’s nest on an Illinois tree farm
When I was teaching ornithology, there were several questions that my students would invariably ask at some point during the academic term. One was why are robin eggs blue? Even Charles Darwin ...
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