ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
I can understand how they count salmon at Bonneville, but birds? They're too many and fast. How do they count without doing it twice?
They count as they enter the chimney, though it is tricky to do
I can understand how they count salmon at Bonneville, but birds? They're too many and fast. How do they count without doing it twice?
They count as they enter the chimney, though it is tricky to do