The mysterious behaviour of female Eclectus parrots killing their sons immediately after they hatch has been unravelled by a team of researchers from The Australian National University.

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Related links

• Heinsohn, R., Langmore, N., Cockburn, A., & Kokko, H. Adaptive Secondary Sex Ratio Adjustments via Sex-Specific Infanticide in a Bird, Current Biology, Volume 21 , Issue 20 , 1744 - 1747
• Why parrots see red, ANU ScienceWise