To alight or settle, as a bird; to sit or roost.
sit, as on a branch; "The birds perched high in the treee"
to come to rest, settle; "Misfortune lighted upon him"
cause to perch or sit; "She perched her hat on her head"
chickens wrapping their toes around a branch or stick are said to be on perch
The place where chickens sleep at night; the act of resting on a perch; also called a "roost."