I can hardly forget my first morning as FBI Director, on the Monday following my meeting with the President. On my desk upon arrival was a letter to the President from the Deputy FBI Director and the Associate Directors protesting my appointment. The Deputy Director assured me nothing personal was intended, they just felt it was inappropriate to have a bird watcher as Hoover’s successor. The Deputy Director, Mark Felt, of ‘deep throat’ fame, who was actively lobbying for the job as Director subsequently resigned when confronted by me for leaking classified information to the N. Y. Times – an unforgivable sin for an FBI agent."Bird watcher" is an allusion to Ruckelshaus's prior service as founding director of the EPA, part of the broader policy legacy of the Nixon administration that he believes was tainted as the result of Mr. Nixon's handling of Watergate.
Hat tip to Maarja Krusten