Study of a sandpiper
Study of various bird eggs
Study of a hanging grouse
Study of a trout
Study of an owl and other birds
Sketch of various birds
Humorous sketch of a turtle playing the piano
Sketch of owls and a farm landscape in Keane, New Hampshire
Sketch of various birds, including owls and woodpeckers
Sketches of various birds
Sketch of a bull on a farm
Sketch of a bear