> This interesting and complex situation has earned this species the nickname “the bird with four sexes.” But to be clear, White-throated Sparrows do not have f

> This interesting and complex situation has earned this species the nickname “the bird with four sexes.” But to be clear, White-throated Sparrows do not have four different types of gonads. As in other birds, each individual typically has either two testes that produce sperm or a single ovary that produces eggs. Nevertheless, as recent research has shown, this species has much to teach us about the nature of sex variability—the way in which sex-related behaviors are influenced by genes, the complex structure of sex-associated chromosomes and the evolution of sexual reproduction itself. Importantly, this species challenges the practice of flattening nature’s wondrous diversity into two categories, male and female. In one paragraph we see truth twisted into activism - no, it does not challenge the "practice of flattening nature’s wondrous diversity into two categories". Sex is binary, traits are bimodal. The songbirds confirm this, not challenge it.