Charles Kellogg (October 2, 1868 – September 5, 1949) was an American vaudeville performer who imitated bird songs, and later a campaigner for the protection of the redwood forests of California.

He constructed a mobile home, called the "Travel Log", out of a redwood tree and drove it around the country to raise awareness of the plight of the California forests.

It consisted of a huge chunk of giant redwood-said to be the single largest piece of hewn timber in the world-hollowed out and mounted on what was then the toughest, most rugged chassis on earth: the Nash Quad.

"[1] Kellog grew up without his mother in the High Sierras where his father Henry Kellogg and Richard Thompson had discovered Gopher Hill Gravel Mine.

He wrote in his autobiography that they "taught me to fear no creature... the habit of minding my own business, letting the other fellow alone - bird, bear, snake, Indian and other humans."

He was sent off to study at Cazenovia Seminary in Syracuse, New York where he lived with his father's sister and he developed his talent for imitating bird songs.

At the age of 16 he joined a touring group and later Benjamin Franklin Keith's Vaudeville franchise performing as "the nature singer" and in musical acts.

After discovering an 1867 treatise by John Tyndall that a small and regulated flame could be extinguished by a sound of the appropriate frequency, he claimed to have developed the technique to do this with his voice.

After World War I he saw a powerful truck, a Nash Quad and decided to modify it by adding a body made from a 7 metre section of a redwood and carving it out with a bed, a toilet and a kitchen with cupboards.

New York, Feb. 2.: Mr Charles Kellogg, a Californian scientist, give firemen here a demonstration of extinguishing a gas flame two feet high by tonal vibration.

Mr Kellogg claimed that in future buildings would have a scientifically-determined pitch, with a screech for extinguishing fires tuned in from a central firehouse, where it would be produced by a much larger bow.