Well now, THIS is very odd. I didn't see THE migration... I saw one migration. At about 5AM I was wakened by cawing. I went to my kitchen window and saw about a hundred crows in my maple tree, the telephone and power wires lined with crows, the pine trees filled with crows and the apartment building(s) rooves behind my house covered with crows. I looked out the front window and it was equally awesome. Thousands of them.