Northern mockingbirds are altricial, which means that, when hatched, These are born relatively immobile and defenseless and therefore need nourishment for a particular period from their parents. The youthful Use a survival bottleneck with the nestling phase due to the fact you'll find bigger levels of nestling predation than egg https://mockingbird05949.blogdiloz.com/35976119/5-simple-statements-about-mockingbird-explained