Finches like 'good wood than paint'

According to a study recently published in Science (USA), when looking for a partner during the breeding season, the female sparrows like sparrows who are more capable of protecting their children than singing or have beautiful fur.

Previously, scientists often thought that female finches liked male finches with beautiful feathers. However, a recent study by Alexis Chaine (French National Science Center) and Bruce Lyon (professor at the University of Santa Cruz California) , contradicted the idea.

The male sparrow is chosen by the female finch during the hatching period and for 4 weeks after hatching, is the time to protect the chicks.

For 5 years, they studied many finches. The birds' nest where the grasshoppers and insects are lacking, the female finches often choose larger beaks that can easily catch insects that feed young birds. In birds' nests near where raging mice are, the female sparrow often chooses males with large wings, capable of chasing rats.

According to scientists, where ecology changes, female selection criteria also change. The easy-to-choose male finches are the ones that are capable of diversity.