Surf and its counterpart Flock of Birds shows the similar yet different movements in a flock of birds or school of fish. Flock of Birds is more triangle than its counterpart and can resemble bird wings flapping whereas Surf can sometimes take on the look of many fishes swimming together if you look at it long enough.

Surf and its counterpart Flock of Birds shows the similar yet different movements in a flock of birds or school of fish. Flock of Birds is more triangle than its counterpart and can resemble bird wings flapping whereas Surf can sometimes take on the look of many fishes swimming together if you look at it long enough.