‘Tis the Season for Nesting Birds! Test Your Knowledge

True or False?

Studies have shown that adult male bluebirds sometimes feed female offspring twice as often as they feed males.

Answer: True! A strange phenomenon revealed in one study showed that while females showed no preference, male bluebirds feed female offspring up to twice as often as they feed males! One explanation might be that sons might someday compete with their fathers for mates, while daughters pose no such threat. For more information about bluebirds, see Enjoying Bluebirds More by Julie Zickefoose.

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