What is the primary reason Eiders congregate in very large flocks during the non-breeding season?
Answer
As a survival strategy offering safety in numbers against predators
Eiders form massive flocks during non-breeding periods as a survival strategy, utilizing the safety provided by large numbers when maneuvering and feeding across the open sea surface.
Related Questions
What is the primary reason Eiders congregate in very large flocks during the non-breeding season?What behavior characterizes the male Common Eider once incubation of the eggs begins?In areas where eiderdown is traditionally harvested, what does the perceived 'friendliness' of the nesting females actually represent?Where is the down naturally collected from the female Eider deposited?Which defense mechanism is specifically mentioned as being available to the female Eider for protection?What type of environment do Eiders prefer and where are they rarely encountered?What is the consequence if a sudden approach is made by an unfamiliar human near a non-protected Eider?What is the core difference between the social comfort and individual disposition of Eiders regarding humans?What behavior change occurs in the female Eider when an intruder gets too close to her clutch while she is guarding her nest?What allows nesting birds in eiderdown harvesting regions to become accustomed to human presence?