10 Birds and They Fly Away One by One

#include <iostream>
using namespace std;

int main() {
    int birdsamount = 10;
    for (birdsamount; birdsamount > 0; birdsamount--) {
        if (birdsamount > 1) {
            cout << "There are " << birdsamount << " birds on the trees." << endl;
            cout << "One bird flies away" << endl;
        }
        else {
            cout << "There are " << birdsamount << " bird on the trees." << endl;
            cout << "One bird flies away" << endl;
        }
    }
    cout << "There is no bird on the tree" << endl;
}