This video from Norway says about itself:
Blackbird switches to quiet song while hunting for food
Common Blackbird (Turdus merula; Svarttrost; Merle noir) sings loudly from a tree, drops to the ground to poke for grub, then switches to a barely audible twittering song, as if singing to itself. This musical twitter is a variant of the so-called “quiet song”. From the island of Sotra west of Bergen, Norway in early spring. Background songs are Great Tit, European Robin, and Greenfinch.
Translated from Vroege Vogels radio in the Netherlands:
Dutch Championship Blackbird Singing
From Texel to Limburg and from Zeeland to Friesland. From across the country in recent months Vroege Vogels received hundreds of recordings of blackbirds singing. More than 200 people sent in their favorite Turdus merula. After long deliberation, the jury of the Dutch Blackbird Championships nominated three sweet-voiced singers. Now it’s up to you to determine who sings most beautifully. The election is on. The winning blackbird will win a song about it by singer-songwriter Ellen ten Damme. Read more here.
Please note that by moving your cursor over one of the three blackbirds here you can listen to that individual’s sound. Then choose the best singer by placing a checkmark under its picture and vote!