Species fact sheet by Global Register of Migratory Species - www.groms.de

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Resident in most of its range, with some local movements in response to food supply. On Hokkaido, species is summer resident only, mainly May-Sept; winter records elsewhere in Japan are very few, and most of Japanese population may be migratory; possible winter records from Okinawa. Stragglers have reached Hebai (NE China), although these records might relate to escaped cage-birds.   (del Hoyo J, Elliott A, Sargatal J (eds), 1997)

• digitised by GROMS, after del Hoyo J A Elliott; J Sargatal (eds) (1997) - www.hbw.com,
• Copyright: GROMS/BfN - www.groms.de
  
  (A digitised version of this map is published in GIS shape format on the GROMS CD).