[2] After graduation and two years of private study, he worked at an agency for a time before enlisting in the Army Air Force in 1942.

[4] Also in 1946, Darling was hired by William Morrow and Company to illustrate Roderick Haig-Brown's book A River Never Sleeps.

"[1] In 1962, the Darlings' friend Roger Tory Peterson suggested to Rachel Carson that they be hired to illustrate her forthcoming book, Silent Spring.

[2] Darling had been interested in nature and the outdoors his entire life, and was an early environmentalist and conservationist.

The organization unsuccessfully sued the state of New York in 1956 to prevent the action, although they were successful in reducing the size of a planned parking lot that was to be built in a Connecticut salt marsh.