The chestnut-cheeked starling (''Agropsar philippensis'') is a species of

starling Starlings are small to medium-sized passerine (perching) birds known for the often dark, glossy iridescent sheen of their plumage; their complex vocalizations including mimicking; and their distinctive, often elaborate swarming behavior, know ...

in the family Sturnidae. It breeds in

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

and the

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

n islands of

Sakhalin Sakhalin ( rus, Сахали́н, p=səxɐˈlʲin) is an island in Northeast Asia. Its north coast lies off the southeastern coast of Khabarovsk Krai in Russia, while its southern tip lies north of the Japanese island of Hokkaido. An islan ...

and

Kuriles The Kuril Islands or Kurile Islands are a volcanic archipelago administered as part of Sakhalin Oblast in the Russian Far East. The islands stretch approximately northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia, separating the ...

; it winters in

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

, the

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

and northern

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

. The chestnut-cheeked starling was previously placed in the genus ''

Sturnus ''Sturnus'' is a genus of starlings. As discussed below, the Taxonomy (biology), taxonomy of this group is complex, and other authorities differ considerably in which species they place in this genus, and in the species boundaries within ''Stur ...

''. It was moved to the resurrected genus ''

Agropsar ''Agropsar'' is a genus of Asian birds in the family Sturnidae. It is sometimes merged with ''Sturnus'' or ''Sturnia'' These two species were formerly placed in the genus ''Sturnus''. They were moved to the resurrected genus ''Agropsar'' based o ...

'' based on the results of two

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

studies that were published in 2008.

References

chestnut-cheeked starling Birds of Japan chestnut-cheeked starling chestnut-cheeked starling Taxonomy articles created by Polbot {{Sturnidae-stub