Research showed that bluebirds inhabiting the California vineyards are beneficial to the winegrowers after studying their poop.
Male bluebirds benefit from spending a year at home before moving out to build a nest of their own, according to a new study from Cornell University and the Santa Fe Institute. Researchers say the cooperative behavior, or rather helping out around mom's nest, improves the birds' life span and increases genetic diversity of offspring, as females prefer mating with older males.
Bluebirds are able to increase their songs and lower their pitch to compensate for increasing background noises that otherwise inhibit communication between them and their potential mates.
Many researchers may agree that birds might as well have written the book on parenting. While past research has found that some birds are expert "bad parents," now a new study has determined that birds can be "designer parents" as well, specifically hatching "juiced up" sons when feeling threatened.