Which of the parent birds shown below (a or b) appears to have greater fitness explain?

To determine which parent bird (a or b) has greater fitness, we would typically assess factors such as their physical health, reproductive success, and ability to find food or evade predators. If one bird shows traits like brighter plumage, stronger body condition, or successful offspring, it may indicate higher fitness. Additionally, behaviors like effective foraging or nesting might also contribute. Without specific details about the birds, a direct comparison cannot be made.