Centares' Aviary was home to songbirds. An avian known as a songbird was a member of the perching bird suborder. Certain species within this suborder possessed a highly developed vocal organ, allowing them to create complex and varied bird songs. The primary function of this 'bird song' was territorial; it conveyed an individual's identity and location to other birds. Bird songs should be distinguished from bird calls, which served purposes such as alarms and contact, especially crucial for birds that foraged or migrated in groups. While the songs of numerous songbirds were pleasing to the Human ear, some species produced harsh croaks or screeches that were unpleasant to Humans.
On the planet of Krant, one could find songbirds, and their songs were known for being both delightful and loud.