[from the posted video description]:
"© Extracts from Ariane Michel's film, Les Oiseaux de Céleste. Copyright Galerie Xippas, Ariane Michel and Céleste Boursier-Mougenot, 2008
French artist Céleste Boursier-Mougenot creates works by drawing on the rhythms of daily life to produce sound in unexpected ways.
For his installation in The Curve, Boursier-Mougenot creates a walk-though aviary for a flock of zebra finches, furnished with electric guitars and other musical instruments. As the birds go about their routine activities, perching on or feeding from the various pieces of equipment, they create a captivating, live soundscape."
[from the video description]:
"August 04, 2008 — Here are presented the following bird songs (some names sound pretty weird, esp. to a German native speaker):
00:30 blue tit
00:48 great tit
02:40 thrush nightingale
03:23 chimney swallow
03:43 grey wagtail
04:18 sedge warbler