Snow Geese

This empty field was ahead of us, and we drove towards it, noticing clouds of geese in the sky over distant hills. And in their thousands, they all descended on the field of grass, stretching out farther than a football field, and really making noise though not as much as Canadian geese do.

After about half an hour of being all settled, they started to leave from the eastern end of the field, and quite suddenly, after a drift-away over ten minutes or so, the last five hundred or so just suddenly took off. One robin was left on the large empty field. It became so quiet, we could hear that robin when he chirped. He really stood up straight and triumphant. He'd moved off how many thousand snow geese?