National parks save mammals
National park
Birds differ like people
Squirrels - North and south
Nighthawk, hunter of the heavens
Feathered fisherman
Sea otter, sought by fur hunters, on its last flippers
Playing with the birds in New Mexico
Do birds act like people?
The smart gull or Friend of the farmer
The vireos, sometimes called greenlets or The vireo, fine basket maker
The bush-tit, a bird architect
Camera hunting in the northland
"The murre multitudes"
"Salmon or kilowatts: Columbia River dams threaten great natural resource"
Correspondence, November 1927
Notes
Bradford Torrey and John Burroughs memorials
The witches' garden
After heron
Wild life restoration
Study of sea birds
Rearing a wren family
Photographing flickers
Descriptions of various bird families
Lecture on plumage hunting
General - The California condor
Photographing pelicans