Java GIF not working

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.imageio.*;
import java.io.*;
import java.util.Objects;


public class CheckersGame extends JPanel implements MouseListener, MouseMotionListener {


    Image title;



    // This is where I create the gif variable
    Image birds;



    int screen = 1;

    public CheckersGame(){


        addMouseListener(this);
        addMouseMotionListener(this);


        try{
            title = ImageIO.read(Objects.requireNonNull(getClass().getResource("resources/images/TitleScreenRocks.jpg")));



            // This is where I import the gif
            birds = Toolkit.getDefaultToolkit().getImage(("resources/images/BirdsGif.gif"));



        }
        catch (IOException e){
            System.out.print("Image not found.");
        }


    }

    public void paint(Graphics g){
        if (screen == 1){
            startScreen(g);
        }
    }

    public void startScreen(Graphics g){
        g.drawImage(title,0,0,null);



        // This is where I draw the gif
        g.drawImage(birds, 400, 400, null);



    }


    @Override
    public void mouseClicked(MouseEvent e) {}

    @Override
    public void mousePressed(MouseEvent e) {}

    @Override
    public void mouseReleased(MouseEvent e) {}

    @Override
    public void mouseEntered(MouseEvent e) {}

    @Override
    public void mouseExited(MouseEvent e) {}

    @Override
    public void mouseDragged(MouseEvent e) {}

    @Override
    public void mouseMoved(MouseEvent e) {}
}