Chickadees fail standardized operant tests for octave equivalence

Neural Correlates of Threat Perception: Neural Equivalence of Conspecific and Heterospecific Mobbing Calls Is Learned

(2011) Marc T. Avey et al.   PLoS One

Mechanisms of call note-type perception in black-capped chickadees (Poecile atricapillus): Peak shift in a note-type continuum.

(2010) Lauren M. Guillette et al.   JOURNAL OF COMPARATIVE PSYCHOLOGY

De novo establishment of wild-type song culture in the zebra finch

(2009) Olga Fehér et al.   NATURE

Male chickadees match neighbors interactively at dawn: support for the social dynamics hypothesis

(2008) Jennifer R. Foote et al.   BEHAVIORAL ECOLOGY

Convergence of calls as animals form social bonds, active compensation for noisy communication channels, and the evolution of vocal learning in mammals.

(2008) Peter L. Tyack   JOURNAL OF COMPARATIVE PSYCHOLOGY

The origins of language and the evolution of music: A comparative perspective

(2008) Nobuo Masataka   Physics of Life Reviews