The bird zones on the Birdsong Map, each include twenty birds.
For example, zone one includes
birds numbered 1 - 20.
131 - Pennie Spirtos
132 - Eszter Szabo
133 - Emily Szalkowski
134 - Janice T. Filipski
135 - Nancy Taylor
136 - Corbett Teter
137 - Seth Trowbridge
138 - Wanda Ullman
139 - Emi Varga
140 - Camille Volk
