The birds of Ladd's Pond
"Oregon conquers stream pollution"
Newspaper clipping titled: “In the Gull Bread Line on our Waterfront”
Compilation of manuscripts on birds
Letter and manuscript of "Bird-life about a pond"
"Old days on Ladd's Pond"
The witches' garden
Malheur
White heron search
Lecture
The witches' garden
Renting houses for songs and birds everyone should know
Columbia River pollution
Do birds act like people?
The witches' garden
General - The California condor
Bird lives
Willamette River distress
The pitcher plant traps and eats insects
Every fall evening one may attend the orchestra of the tree crickets
The orchestra of tree crickets performs every evening
The pitcher plant traps and eats insects
When the skylark sang in Portland
Yellow throat
Red tail hawk
Eastern Oregon
Bird - Life about a pond