Nonpasserine bird produces soft calls and pays retaliation cost

Low-amplitude song predicts attack in a North American wood warbler

(2010) David Hof et al.   ANIMAL BEHAVIOUR

Sophistication and simplicity: conventional communication in a rudimentary system

(2010) Paweł Ręk et al.   BEHAVIORAL ECOLOGY

Song as an aggressive signal in songbirds

(2009) William A. Searcy et al.   ANIMAL BEHAVIOUR

Reliable aggressive signalling in swamp sparrows

(2008) Barbara Ballentine et al.   ANIMAL BEHAVIOUR

The deterrent effect of bird song in territory defense

(2008) Selvino R. de Kort et al.   BEHAVIORAL ECOLOGY

Is bird song a reliable signal of aggressive intent? A reply

(2008) William A. Searcy et al.   BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY

Soft Song in Song Sparrows: Acoustic Structure and Implications for Signal Function

(2008) Rindy C. Anderson et al.   ETHOLOGY

Individuality in Corncrake Crex crex vocalizations

(2008) T. M. PEAKE et al.   IBIS