Migrating Eared Grebes
I saw this interesting, tight knit group of birds as I was driving along the Yellowstone RIver in Yellowstone Naitonal Park. I stopped the car, rolled down the window and pointed my camera ... at nothing. They were gone, not flying off, not up or down the river. Suddenly they all popped up from an underwater dive as one unit. After a minute, the lead bird made a move to dive and they all followed, totally synchronized.
GrebesEarned GrebesMigrating BirdsDiving BirdsBirdsWildlife