Twitlnik is based on a baby Hawk as well as a Scarecrow. The Pokémon has a fairly small body and a relatively large head compared to the rest of its body. It has completely black eyes although they are quite reflective of light. It has a short beak which is cream in colour with a black dot on the tip of the beak, it is also hooked curling downwards at the tip. The Pokémon's feathers are predominantly cream in colour with a few golden feathers mixed into its ruff and some darker brown feathers that appear in a spotted pattern especially in and around its wings and underbelly. The Pokémon's wings have several very long feathers that extend out well beyond the rest of the wing's feathers, these long feathers are very thin and slightly bulbous at the tip, this coupled with their orange-like colour makes them appear like long grains which the Pokémon sometimes uses to tempt Bug-Type Pokémon which are its prey closer to it.
The Pokémon's wings are fairly short being slightly smaller than its torso in size each, in addition they're rounded having an almond-like shape to them. The Pokémon has numerous tail feathers although they're quite short and form a crescent moon shape being narrow at the base but widening out towards the tip. It has short grey legs with three claws on each foot, all three claws are forward facing. A notable feature of the Pokémon is a long quill-like feather that appears at the top of its head, on males this quill curves in a clockwise direction around the back of the Pokémon's head while on females it curls anti-clockwise around the front of the Pokémon's face appearing like a curl.