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According to Phys. Org, The study published in the journal Nature Climate Change, found that instead of trying to juggle the demands of new offspring and harsh environmental conditions, most of the songbird species studied opted to reduce their reproduction during drought.
The research used data on 38 species in Venezuela and Malaysia from 17 years of fieldwork, including a period of drought in each country
The study found reproduction was reduced by an average of 36% in the 20 Malaysian species and 52% in the 18 Venezuelan species.