Pair-bonded Java sparrows show enlarged eye rings to signal breeding readiness. Birds are known for their elaborate courtship rituals and romantic gestures that are replete with beautiful songs ...

Pair-bonded Java sparrows show enlarged eye rings to signal breeding readiness. Birds are known for their elaborate courtship rituals and romantic gestures that are replete with beautiful songs ...

Biting hard or singing fast? In my research, I work with Java sparrows and domestic canaries. The bite of the former is more than three times stronger than that of the latter.

New research suggests that bird vocalizations may follow hidden rules similar to those that govern human language.

At Kissho Tennyo Koryuten in Yokohama's Naka Ward, four of the birds, collectively referred to as "Buncho sensei" (Java sparrow teachers), are being used to tell customers' fortunes. They are kept ...

Java sparrows (left) have much bigger and stronger beaks than canaries (right), but sing fewer syllables per second. Photos by Jeffry Surianto and Rodrigo Chaves from Pexels. Song spectrograms ...