Wintering and nestling locations in Steller's eagle coinside with nestling ares only in part. Most of adult and subadult eagles undertake the wide seasonal migration in fall and spring in searching available food sites. Migration schedule is unregular being depends on season food abundance and distribution and fluctuate year by year.
Characteristics are significant in distingushing preferable feeding sites (inportance is decresing during this rank):
- salmon spowning grounds presence
- period when food is available
- transparency of water
- underground springs presence
- average size
- depth
- ice condition (non frost during winter)