Wild ducks conservation
Waterfowl protection and other manuscripts
Southern Oregon lecture I
Redhead Ducks
Redhead Ducks
Redhead Ducks
Redhead Duckling
Redhead Duckling
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Mallard Ducklings
Mallard Ducklings
Mallard Ducklings
Mallard Ducklings
Mallard Ducklings
Mallard Duckling
Mallard Duckling
Mallard Duckling
Mallard Duck
Mallard Duck
Mallard Duck
Mallard Duck