Bird Combiner

Bird Combiner lets you combine birds.

Examples
Chuck+Blues=Blue Chuck(a chuck that splits into 3 when speeds up) Matilda+Blues=Blue Matilda ( a matilda that drops 3 eggs) Bomb+Chuck=Fast Bomb (bomb that kills pigs faster) Terence+Blues=Goliath Blues (enormous blues)

Restrictions

 * You cannot combine Red with another bird.
 * You cannot combine two of the same birds (except Chuck+Chuck=faster chuck)
 * You cannot combine 3 or more birds.