List of birds
Waterfowl protection and other manuscripts
Duck hunting on the Columbia
Duck refuge at Klamath Falls has effective death trap
Banding ducks on Malheur Lake
Compilation of manuscripts on birds
Along the Klamath River
Home life of birds
Ducklings
Southern Oregon lecture I
Lecture
Wild ducks conservation
Ducklings
Ducklings
Ducklings
Green-Winged Teal
Green-Winged Teal
Redhead Ducks
Redhead Ducks
Redhead Ducks
Redhead Duckling
Redhead Duckling
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck