2019 Volume 31 Issue 1_2 Pages 43-52
A female Great Cormorant Phalacrocorax carbo sinensis banded on Furugelma Island in the Primorsky Territory of Russia was recovered in Gotsu City, Shimane Prefecture, Japan in March 2013. The Eurasian subspecies P. c. sinensis is considered to be different from its Japanese counterpart, the P. c. hanedae. A comparison was made between external body size and bone measurements based on this single individual. Except for the pelvis length, the measured values of the Russian Great Cormorant overlap those of Japanese Great Cormorants with no appreciable difference. Therefore,it is quite difficult to distinguish, morphologically, between the migrated Russian Great Cormorant and the native Japanese Great Cormorant population.