ML637635464

Деталі спостереження

塒入りしつつあるようだった。暗くてシルエットでは8羽しか確認できなかった。鳴き声から推測すれば200羽はいそうな感じだった。They seemed to be roosting. It was dark and I could only see eight birds by silhouette. Judging from their calls, it seemed like there were at least 200 birds.