Why don't seagull parents his brothers and sister give him food?

Seagull parents prioritize feeding their strongest chicks to ensure the survival of the fittest. If a chick is weaker or less aggressive, it may struggle to compete for food against its siblings. Additionally, parents may encourage self-sufficiency by allowing younger or weaker chicks to fend for themselves, teaching them survival skills. This behavior ultimately helps maintain a healthy balance within the family group.