La Tour du Valat

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The time of singing by male Capercaillies Tetrao urogallus at leks : Bird Study

Ron Summers ; Molly Doubleday ; Ellie Ames

Dans Bird Study (68(1) April, 2021)

Counts at 16 Capercaillie leks revealed that singing started two hours before sunrise and reached a peak in the number that sang about one hour before sunrise. Most song had finished by sunrise, but some extended up to five hours after sunrise. [...]

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