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Honolulu's Invasive Birds: A 19th Century Fix Gone Wild
3 Nov
Summary
- Mynas were introduced in 1865 to combat armyworms in sugarcane.
- These adaptable birds thrive on diverse diets, including scraps and insects.
- The long-term impact on native birds remains a subject of debate.
Common mynas, native to South Asia, were first brought to Hawaii in 1865 with a specific purpose: to combat an armyworm infestation threatening sugarcane crops. This introduction was spearheaded by physician William Hillebrand, who imported the birds from India on behalf of the Hawaiian government.
The plan was to use the mynas' insectivorous diet to protect young sugarcane. However, the birds proved far more adaptable than anticipated. Ornithologist E. L. Caum noted in 1933 that their diet extends to house scraps, fruits, and other insects, enabling them to flourish in urban environments.
More than 160 years after their arrival, common mynas remain widespread in Honolulu, known by Hawaiian names translating to 'full of voice' and 'trash-eating bird.' Their success in adapting has led to them becoming invasive species in many introduced locales, where they compete with native birds for essential nesting sites.
Despite their pervasive presence, the extent to which common mynas harm Hawaii's native bird populations is a subject of ongoing generational debate. Some historical observations suggested that concerns about the birds might have been exaggerated, leaving the true ecological impact a topic of continued discussion.
