The city of Lawrence, MA lies in the heart of the Merrimack Valley near the border of southern New Hampshire. It is located in Essex County, along the Merrimack River, and is about twenty-five miles north of Boston. Lawrence enjoys a rich history as a city of immigrants, and has a large number of massive old brick textile mill buildings.
For decades, the city has hosted a significant winter crow roost. The winter crow roost consists of mostly American Crows, along with a much smaller number of Fish Crows. Typically, an hour before sunset, the crows gather in smaller pre-roost groupings. These pre-roost (staging) locations may change on any given night. The crows then converge after sunset time, into the final roost location. Some Crows may start as anchors in the final roost just before sunset, and then most other Crows join after sunset. They will fly in over the following 60 minutes, until the roost quiets down completely for the night. For many years, the final roost location had been along the south side of the Merrimack River, by the New Balance building complex. Over the last two winter seasons, from October 2017 until spring 2019, the final roost location has changed many times. The size of the winter roost typically grows from an initial group of a couple of hundred Crows, as early as September, to over 25,000 crows in early 2019.
It is an amazing sight to see and you are invited to take a closer look, through this blog, to learn more and enjoy this awesome avian experience!