Golduck pack - psyduck

Habits and behavior
Primary habitat: Freshwater lakes, slow-moving rivers, and ponds. They prefer calm areas but can be found in tropical rivers or even rough seas (especially Golduck). They are most active at dusk or night. Psyduck are also seen at water's edges.
Diet: Primarily piscivorous (they hunt fish and other small aquatic Pokémon). Golduck are agile hunters that pursue prey at high speed underwater.
Daily behavior:
Psyduck: They appear confused and sluggish due to constant headaches (caused by accumulating psychic powers). They remain still, trying to calm themselves, but when the pain becomes intense, they unleash powerful psychic attacks (without remembering them afterward). Within the pack, the Golducks protect them during these episodes.
Golduck: They are the fastest swimmers of all Pokémon. They move gracefully even in storms, using their tail as a rudder, and sometimes rescue humans or Pokémon in danger. Their forehead jewel glows when they use psychic powers. They are elegant and active in the water, hunting or training in swimming.
In groups: The pod swims together, with Golduck leading and keeping watch. Psyduck learn from the adults. They can use abilities like Cloud Nine (removes weather effects) or Damp (prevents explosive movements). They are social in their aquatic habitat, but shy or disconcerting on land.

Composition
A typical herd includes:
Most Psyduck: Juveniles and subadults that have not yet evolved. They are more numerous because evolution requires reaching level 33.
Some adult Golducks: They act as protectors, leaders, and hunters. There may be one "alpha" or several dominant males/females (the gender ratio is 50/50).
Occasionally, eggs or newly hatched Psyduck.
These groups aren't as large as the herds of other Pokémon, but they can number between 5 and 15 individuals in calm lakes or rivers. They live in freshwater habitats (lakes, ponds, and rivers in tropical or temperate zones). Golduck sometimes move to larger bodies of water after evolving to have more space.

Appearance
Psyduck (most of the flock are usually juveniles): These are medium-sized (0.8 m tall, about 19.6 kg) yellow Pokémon that resemble a bipedal duck or platypus. They have a wide, flat, cream-colored beak, vacant, bewildered eyes with tiny pupils, three thick black tufts of hair on their heads, and cream-colored webbed feet. They always seem to be holding their heads in their hands due to a chronic headache, giving them a dazed and "silly" expression. Their bodies are plump and clumsy on land.
Golduck (the leaders and adults of the pack): They are larger and more elegant (1.7 m tall, about 76.6 kg), blue in color with a streamlined body. They have piercing red eyes, a cream-colored beak, a bright red jewel in the center of their forehead (which glows when they use psychic powers), and four protrusions or "horns" on the back of their head. Their hands and feet are webbed with cream-colored claws and membranes, and they possess a long tail that they use as a rudder. Their form is reminiscent of a kappa (a Japanese folkloric creature) or a professional swimmer. They are graceful and swift in the water.
In the pod, the Psyducks look clumsy and uncoordinated (many with their hands on their heads), while the Golducks swim gracefully and lead the group, creating a visual contrast between the "comedic" and the "powerful".