According to the Detroit Free Press, the lower Detroit River has become one of the largest vessels of passage for hundreds of thousands of migrating hawks, eagles, falcons, and vultures as they make their way to South America.

In the past three days, more than 13,000 hawks have been spotted near Detroit, most of them being broad-winged hawk and turkey vultures.

Interested in watching thousands of hawks circling the sky now, during the height of migration season?

Head out to Lake Erie Metro Park's boat launch, where raptor watchers gather almost every day, according to the Detroit river Hawk Watch's Facebook group, which has nearly 700 members.