Blue tits have more mating success when males perform a variety of songs •

A new report on the mating success of blue tits provides insights into the fascinating world of bird song and its impact on mating rituals.

Frequent female song in blue tits: behavioural context suggests a role in intrasexual competition

Blue tits, snail shells, caterpillars and spiders

Great tit: song, nest & eggs - Plantura

PDF) The blue tit's song is an inconsistent signal of male condition

Sexual selection for both diversity and repetition in birdsong

Blue Tit Populations Closely Linked To Numbers Of Moth Caterpillars

Female finches prefer courtship signals indicating male vigor and neuromuscular ability