To be honest, it's really bland. There aren't any clear goals other than in Endurance mode.
I like some of the graphics effects like the bird feather, but hate others like the ball in keep-up that spins stupidly when it hits a wall.
To be honest, point-and-click target games like this are very dated. I think this would make an excellent TYPING game. Attach words to the targets and maybe math problems to the birds.
Otherwise, what you have here is a generic and bland target-clicker.
Gfx - 7
Gameplay - 4
Sound - N/A
Design - 7