Northern mockingbirds are altricial, which means that, when hatched, they are born somewhat immobile and defenseless and thus call for nourishment for a specific duration from their mother and father. The youthful have a survival bottleneck in the nestling stage mainly because there are actually greater levels of nestling predation https://mockingbird48260.ampedpages.com/mockingbird-no-further-a-mystery-64036454