Animal

Animals are a type of minor creature in Splatoon. They are distinguished from the other species by the fact that they have seem to have undergone little to no changes compared to their ancestors. This is in contrast to intelligent, humanoid creatures such as Inklings and Octarians, which have changed drastically over time.

Sparrows
Sparrows are the most common animal seen in Splatoon. They appear very similar to Eurasian tree sparrows, but are much more round. This is either due to fatness, thick feathers, or simply stylization.

They perch at various locations and sit chirping and looking around, but when the player approaches, they immediately take off into the air. If the player moves a sufficient distance away and is not looking, they will return to the same spot and resume chirping.

Callie apparently finds sparrows very cute.

Inkopolis

 * One sparrow perches the first small pole to the east of the Arcade Machine.
 * A sparrow sits among the plants at the southern edge of the Plaza.
 * Just south of Judd, a sparrow sits on the ground next to a railing.
 * A pair of sparrows sit on the ground in front of Spyke.

Octo Valley

 * A sparrow perches on the edge of the roof of Cap'n Cuttlefish's shack.
 * Two sparrows sit on the corner of a wall next to DJ Octavio's snowglobe.
 * Two sparrows perch on a small railing on the edge of a grated walkway, next to the Kettle for Mission 2.
 * Sparrows can also be found in various missions, such as Floating Sponge Garden and Flooder Junkyard.

Seagulls
Seagulls are, naturally, found near bodies of water. They appear to be ring-billed or slender-billed gulls, and glide in large circles in the air, usually in small groups.

They do not react to the player's presence, but upon being hit by Ink, they will flap their wings indignantly and squawk. This is mentioned by Callie in regards to Saltspray Rig; she feels bad for them when they get inked.

Also in regards to Saltspray Rig, Marie remarks that "seagulls are natural predators of squid", but there are no seagulls in Splatoon that act aggressively towards Inklings.

Octo Valley

 * A small group of seagulls flies around the Inkrail from Area 3 to Area 4.

Stages

 * Seagulls are found flying at both Saltspray Rig and Hammerhead Bridge.

Butterflies
Butterflies are always seen flying about in groups. They come in white or yellow, and do not make noise or react to the player's presence. They are always found near vegetation.

Inkopolis

 * Many butterflies are found among the plants at the southern edge of the Plaza.

Octo Valley

 * Some butterflies fly around under the western-most tree in Area 2.

Cicadas
Cicadas are not seen, but heard singing in the background. They are present during the day and only at Flounder Heights.

The audio used for cicada songs is similar, if not identical, to that of the Brown Cicada, Walker Cicada, and Robust Cicada from the Animal Crossing series.

Crickets
Crickets, like cicadas, are only heard singing in the background, not seen.

Appearances

 * During Splatfests, which take place at night, crickets replace cicadas at Flounder Heights.
 * At Camp Triggerfish, crickets can be briefly heard when the player spawns.