Before we see or feel spring, we often hear it first — in the testimony of a Red-winged Blackbird, the energy of a Song Sparrow, or the serenade of an American Robin. But across much of North America, an earlier sign of spring is the return of Turkey Vultures. In the U.S., you may see them as early as February or March. Unlike most of our returning birds, which migrate at night, Turkey Vultures migrate like hawks — in the daytime. They rise on warm spring updrafts, with a distinctive teeter from side to side. And then they glide — northbound.

More info and transcript at BirdNote.org. 

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