Language and birdsong: Introduction to the special issue
The origins of vocal learning: New sounds, new circuits, new cells
From central pattern generator to sensory template in the evolution of birdsong
Genes and vocal learning
The relationship of neurogenesis and growth of brain regions to song learning
Sleep, off-line processing, and vocal learning
Mechanisms of song perception in oscine birds
Peripheral mechanisms for vocal production in birds – differences and similarities to human speech and singing
Vocal learning in Grey parrots: A brief review of perception, production, and cross-species comparisons
Production, usage, and comprehension in animal vocalizations