For many people, Anza-Borrego is famous for its desert wildflower bloom which in wet years can be amazing. But, when a birder thinks of Anza-Borrego, they probably think of the Swainson’s Hawk migration that takes place this time each year. On a record day, more then 1,000 hawks stopped in the valley where the town of Borrego Springs is located to roost for the night. I personally have seen groups as large as a 100, with dozens roosting in the trees near our camp. The stay the night, and then move on the next morning. Last year over 3,000 hawks migrated through this area.
Beginning on February 15, volunteers begin a local hawk watch where they count the migrating hawks – the peak of the migration is in March. You can see the hawk watchers with their spotting scopes on top of a large mound of dirt along De Giorgio Road north of Big Horn Road, very near to where this photo was taken.