<P> A laboratory observation of 38 mockingbird nestlings and fledglings ( thirty - five and three , respectively ) recorded the behavioral development of young mockingbirds . Notable milestones included the eyes opening , soft vocalizations , begging , and preening began within the first six days of life . Variation in begging and more compact movements such as perching , fear crouching , and stretching appeared by the ninth day . Wing - flashing , bathing , flight , and leaving the nest happened within seventeen days ( nest leaving occurred within 11 to 13 days ) . Improvements of flight , walking and self - feeding took place within forty days . Agonistic behavior increased during the juvenile stages , to the extent of one of two siblings living in the same area was likely killed by the other . </P>
<P> A laboratory observation of 38 mockingbird nestlings and fledglings ( thirty - five and three , respectively ) recorded the behavioral development of young mockingbirds . Notable milestones included the eyes opening , soft vocalizations , begging , and preening began within the first six days of life . Variation in begging and more compact movements such as perching , fear crouching , and stretching appeared by the ninth day . Wing - flashing , bathing , flight , and leaving the nest happened within seventeen days ( nest leaving occurred within 11 to 13 days ) . Improvements of flight , walking and self - feeding took place within forty days . Agonistic behavior increased during the juvenile stages , to the extent of one of two siblings living in the same area was likely killed by the other . </P>
how long do mocking birds stay in the nest
how long do mocking birds stay in the nest
within 11 to 13 days
within 11 to 13 days