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Showing 1 to 1 of 1 for “"Sialia sialis 2"”.
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Parental Investment and Male Ornamentation in the Eastern Bluebird (Sialis Sialis)
… plumage coloration in male Eastern Bluebirds (Sialia sialis). I found there was no correlation between nestling provisioning and nest defense for males or females. Males with brighter UVblue plumage tend to provision nestlings at higher rates and more-ornamented males tend to defend the nest …