Consistent and well‐defined criteria for the classification and measurement of humpback
whale song features are essential for robust comparisons between investigators. Song …

Behavioral studies of song learning in birds continue to raise new problems for
neuroethological investigation. Evidence is emerging for a new form of vocal plasticity …

Twenty years ago Pepperberg set out to discover whether large-brained, highly social
parrots were capable of mastering complex cognitive concepts and the rudiments of …

In studies of bird song, experimental designs and statistical analyses are often inappropriate
for the hypotheses being tested. Frequently, only one playback or tutor stimulus is used to …

Acoustic signals are usually very effective in long-distance communication. However, in
many habitats animals suffer more and more from signal interference caused by traffic …

A central question in animal communication research concerns the reliability of animal
signals. The question is particularly relevant to aggressive communication, where there …

Songbirds develop their songs by imitating songs of adults. For song learning to proceed
normally, the bird's hearing must remain intact throughout the song development process. In …

Song–type matching is a singing strategy found in some oscine songbirds with repertoires of
song types and at least partial sharing of song types between males. Males reply to the song …

Song repertoires may be a product of sexual selection and several studies have reported
correlations of repertoire size and reproductive success in male songbirds. This hypothesis …

It is our goal in this text to use evolutionary principles as a unifying theme for exposing
students to a number of approaches to the field of animal behavior and to demonstrate that …