Chief Flying Hawk was interested in current affairs and was an advocate for Native American rights.

The Sioux never accepted the legitimacy of the annexation of the Black Hills "Paha Sapa".
In 1920, lobbyists for the Sioux persuaded Congress to authorize a lawsuit against United States in the U.S. Claims Court to seek redress for grievances.
In 1923, Chief Flying Hawk, with the support of McCreight, called upon the Council to file the case of United States v. Sioux Nation of Indians.
In a later visit to The Wigwam, McCreight asked Flying Hawk about the status of the case.
Flying Hawk appealed to his interpreter to make it clear that the treaty with Napoleon was broken at the time that his country was purchased, and that the whites had, from the beginning of relations with their tribe, ignored and wholly repudiated their first and principle obligation toward the Sioux.

McCreight, who studied the treaties between the Sioux Nation and the United States, served as an expert on Native American affairs and traveled to Washington, D.C. to assist lawyers for the Sioux Nation.
Chief Flying Hawk was familiar with the legal claims and pleadings and requested that his commentaries include the swindlings that were perpetrated upon the Sioux tribe in so-called land purchases.
Litigation between the Sioux and the government would continue well into the 20th century.
Chief Flying Hawk was interested in current affairs and was an advocate for Native American rights.
The Sioux never accepted the legitimacy of the annexation of the Black Hills "Paha Sapa". In 1920, lobbyists for the Sioux persuaded Congress to authorize a lawsuit against United States in the U.S. Claims Court to seek redress for grievances. In 1923, Chief Flying Hawk, with the support of McCreight, called upon the Council to file the case of United States v. Sioux Nation of Indians. In a later visit to The Wigwam, McCreight asked Flying Hawk about the status of the case. Flying Hawk appealed to his interpreter to make it clear that the treaty with Napoleon was broken at the time that his country was purchased, and that the whites had, from the beginning of relations with their tribe, ignored and wholly repudiated their first and principle obligation toward the Sioux.
McCreight, who studied the treaties between the Sioux Nation and the United States, served as an expert on Native American affairs and traveled to Washington, D.C. to assist lawyers for the Sioux Nation. Chief Flying Hawk was familiar with the legal claims and pleadings and requested that his commentaries include the swindlings that were perpetrated upon the Sioux tribe in so-called land purchases. Litigation between the Sioux and the government would continue well into the 20th century.
Flying Hawk