Older male nightingales perform faster and more demanding trills than their younger rivals. With up to 100 trill elements a second, nightingales belong to the fastest singers. Older male nightingales ...
Nightingales can adjust the pitch of their whistle songs to precisely match the songs of other nightingales, just as we humans modulate our tone of voice during a conversation. The common nightingale ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results