How to Use Sprite Collide in Pygame

Question

I am making a very simple game where the bird (player) has to dodge the rock and if it gets hit by the rock you lose. I am trying to use pygame.sprite.collide_rect() to tell if

Answer 1

Change

def checkCollision(sprite1, sprite2):

To

def checkCollision(self, sprite1, sprite2):

And you don't have to check the collision on every event, reduce the indent of rock.checkCollision(bird.image_b, rock.image_b) by 1.