We had about 20 black bellied whistling ducks today - April 18th. But on Mark's Birthday 2 days ago (4/16) we had about 100 of them. I call them peep - a - peeps. They battled, yelled, and sang for Mark on his birthday.
I wonder every year when the peep a peeps arrive on their migration, and I can never remember. This year, the large flock arrived April 16th.