Western bonelli's warbler / Berglaubsänger (Phylloscopus bonelli)

Wikipedia Berglaubsänger Phylloscopus bonelli. Source: WIKIPEDIA Wikipedia Berglaubsaenger Phylloscopus_bonelli.jpg Canon EOS 450D Shutter speed 9
ISO 200
Exposure 1/500
Classification: Genus Phylloscopus (Phylloscopus); Family Phylloscopidae (Phylloscopidae)
Roman von Sury likes them, but notes that their habitat is increasingly disappearing in Switzerland.
Song: Reihe(5-10) von gleichhohen Schlägen, ähnlich dem Schwirren der obigen Art [Waldlaubsänger], aber langsamer, einzelne Töne deutlich getrennt, etwas scheppernd. Kann mit Klappergrasmücke verwechselt werden) [Link]
Habitats: Forest

Song: Single note repeated 6 or 8 times quickly in half a second
Song attributes: Melody: one note, fast, Frequency: 3-7 KHz
XC720128 - Western Bonelli's Warbler - Phylloscopus bonelli - song, recorded in France.
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First documented observation: 2020-06-08 in Sils. Most recent observation: 2020-06-11 in Sils.