The way Settlers impacted Native Americas in the west was that the US Government forced them to live on land called "Reservations", which may I add wasn't the best lands. Native Americans usually hunted Bison which were their main source of food and clothes, but the US army, railroad companies, and white settlers set out to kill all bison, causing many Indian Americans to starve.
Hope this helps.
Union forces from Brazos Island launched the Brazos Santiago Expedition, leading to the last battle of the Civil War, the Battle of Palmto Ranch, fought in Texas on May 12, 1865, well after Robert E. Lee's surrender on April 9, 1865, at Old Appomattox Court House, Virginia.
It nearly became extinct by a combination of commercial hunting and slaughter in the 19th century and introduction of bovine diseases from domestic cattle. With a population in excess of 60 million in the late 18th century, the species was down to just 541 animals by 1889.
The action of the first flight in North Carolina