Pintail Chicks in Nest
Pintail Chicks in Nest
Pintail Duck Development
Pintail Ducks
Pintail Duck on Nest
Pintail Duck on Nest
Canvasback Duck
Canvasback Ducks
Compilation of manuscripts on birds
Southern Oregon lecture I
Mallard Nest and Eggs
Pintail Duck
Pintail Duck
Pintail Duck on Nest
Pintail Duck
Pintail Duck
Pintail Duck
Pintail Duck
Redhead Ducklings
Cinnamon Teal
Lecture
Mallard Nest and Eggs
Pintail Nest and Eggs
Pintail Duck on Nest
Pintail Duck on Nest
Pintail Duck
Pintail Duck
Pintail Duck