This is a rare early Antler-backed Santa Domingo handmade folk art necklaces were made during the depression from car batteries, turquoise, records, plastic fork tines, and other material and sold at the Railway Stations to tourists. In general, the beads are Santa Domingo handmade beads, sometimes graduated. This is a nice extra-long necklace with lots of side pieces. 

The thunderbird is 2 1/4" x 1 3/8", necklace overall is 24" plus the pendant