Boid Home
A more complex set of interactions - the large gentleman is an 'odd-ball', who likes only those boids with an odd-numbered ID. The ordinary boids (the smallest ones) fall into this category, although they will try to avoid him. The intermediate-sized creatures are 'social climbers', who like only those bigger than themselves. They will hence all follow the odd-ball, who tries to avoid them. Everyone is evenly matched in terms of manouevreability.

Once more, its all change, with pockets of cohesive patterns appearing then being disrupted.
B O I D S . 5
A self-organising flock of artificial creatures