Birds
Counting godwits in poor light
By the time the equinox tide had covered the lower marsh, the godwits had gathered on the last dry mud: a few hundred, shoulder to shoulder, bills tucked, indifferent to the arithmetic I was attempting.
Counting a flock is mostly a matter of choosing a unit. I count in tens until the tens blur, then in patches, then in guesses, and write down the guess with an honest question mark. The marsh has never complained about my numbers.