Oregon Field Guide

Oregon Field Guide

Waterfall Search, Columbia River Trail, Bird Song (16x5)


Exibido em:: Fev 01, 2005

Join us on our search for an unnamed, unmapped waterfall in the Mt. Hood wilderness! Canoers and kayakers want to create a "river trail" on the lower Columbia River. Biologists study songbirds to learn more about the human brain.

  • Estreou: Fev 1990
  • Episódios: 174
  • Seguidores: 6
  • Em exibição
  • PBS
  • Quinta-Feira às 20