Fish

Frequency
Fish are the most common creature found in Journey, even if you only count fish schools, and not individual fish.

Appearance
They are almost-flat, almost-square pieces of cloth, with a fold toward the 'head' that they fly in the direction of. From a side-view, they may appear to have a larger head than body. They are always found in groups, sometimes called "schools," "swarms" or "flocks."

Behavior
Fish are the only cloth creature (not counting Ribbons) that are not known to have a visible - or even audible - utterance.

Some flyers need to be freed. A free school of flyers will fly around in a circle. If a player with a non-full scarf comes near them, the fish will fly up to the player, recharging a small bit of their scarf energy, so long as that player is on the ground. A fish will need a short time to recharge before it can give the player some energy.

Sometimes flyers will combine to create a ribbon.

Interaction
If they are touched by a player's chirp, they will glow, and fly around the player, both giving that player a height boost, and recharging that player's scarf.