diff --git a/birdie.py b/birdie.py
index 50acfdd..ce1bee2 100644
--- a/birdie.py
+++ b/birdie.py
@@ -5,12 +5,19 @@ WIDTH = 400
 HEIGHT = 700
 
 
-bird = Actor('bird1', (75,350))
 
 
+titi = Actor('bird1', (75,350))
 
+titi.speed = 1
 
 
+def on_mouse_down():
+    print('Clic souris !')
+    titi.y -= 50
+
+def update():
+    titi.y += titi.speed
 
 
 
@@ -19,6 +26,6 @@ bird = Actor('bird1', (75,350))
 
 def draw():
     screen.blit('background',(0,0))
-
+    titi.draw()
 
 pgzrun.go()