Adult winter	4th winter	Juv/1st winter
Adult winter	3rd winter	Juv/1st winter
Adult winter	2nd winter	Juv/1st winter
Adult winter	2nd winter	Juv/1st winter
Adult winter	2nd winter	Juv/1st winter
Adult winter	2nd winter	Juv/1st winter
↓The Same bird Adult winter(03-04) Adult winter(03-04) Adult winter(03-04) Adult winter(04-05) Adult winter(04-05) Adult winter(04-05) Adult winter(04-05) Adult winter(04-05) Adult winter(05-06) Adult winter(05-06) Adult winter(05-06)