Hawk Watching

Rough-legged hawk © Phil Brown
Rough-legged hawk © Phil Brown

Hawk watching is a unique form of birdwatching. Most birds are best observed, identified, and appreciated when they are resting on the ground, water, or perched in vegetation. On the other hand, hawks seem to provide the most pleasure and excitement when they are in the air, soaring, gliding, flapping, or stooping in awesome aerial displays.

Hawks are often best seen and in the greatest numbers during spring and fall migration. Although spring hawk migration is substantial and exciting to watch, it is fall migration that provides the best views and the largest numbers of hawks.

Get to Know Your Hawks

The term “hawk” has been applied to many birds of prey, including some that aren’t closely related to each other. These include the slender, round-winged accipiters, the stocky buteos, the speedy falcons, and many others.

Here are the species you’re likely to see in Massachusetts >

Fall Migration

Broad-winged Hawk © Joseph Cavanaugh
Broad-winged Hawk © Joseph Cavanaugh

Although fall migration starts in August with small numbers of migrating hawks already on the move, September is usually the best month for fall hawk watching. Thousands of hawks that breed north of Massachusetts, along with the young of the year, move through Massachusetts in significant concentrations every fall.

Most numerous of these species is the Broad-winged Hawk, which at times can be seen in flocks, of hundreds or occasionally even thousands of birds,  soaring high into the sky in groups called “kettles." The next most commonly seen September migrants are Sharp-shinned Hawks, American Kestrels, Ospreys, Northern Harriers, and Turkey Vultures.

Learn more

Spring Migration

Sharp-shinned hawk © Richard Johnson
Sharp-shinned hawk © Richard Johnson

Fewer hawks are generally seen during spring migration than in the fall, in large part because their numbers are usually reduced by mortality sustained during their long migrations to and from their wintering grounds. In addition the locations of their wintering grounds, geographical topography, and weather patterns in spring tend to concentrate many migrating hawks west of Massachusetts.

Spring hawk watching can nonetheless be rewarding. At many coastal sites in spring, exciting eye-level views of Sharp-shinned Hawks, Northern Harriers, Merlins, and American Kestrels can often be obtained.

Learn more

Enhance Your Hawk Watching Experience

When you go hawk watching, you want to be prepared. Essential items to bring with you include:

  • Warm clothing since it can often be quite cold or windy at exposed hawk watch sites.
  • Adequate food and drink, so you don’t have to leave the site to get food if the hawks are flying.
  • A compass to help you find the site and evaluate the view, as well as to determine flight directions.
  • A notebook for recording the numbers of hawks you count, the time you see each bird or each kettle, and whatever other observations you might make about the hawks, including questions you might have about the identity of the hawks you see.
  • Binoculars so you can regularly scan the sky in all directions, including directly overhead.
  • Field guides to help you look up and identify any "questionable" birds that you might see.

Take a Hawk Watching Program

In spring and September, many of Mass Audubon's wildlife sanctuaries host hawk watching programs. 

Find a program