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Perisoreus
Northers jays
Corvidae の属 Passeriformes 内

種名 学名 名前 標本
アカオカケス
Perisoreus infaustus 		Perisoreus infaustus 7 7
カナダカケス
Perisoreus canadensis 		Perisoreus canadensis 3 3

Diese Gattung setzt sich aus drei verschiedenen Arten zusammen.
Als erstes ist hier der in Nord(ost-)europa lebende Unglückshäher (P. infaustus) zu nennen, weiterhin noch der auf Tibet und China beschränkte Sichuanhäger (P. internigrans) und der Nordamerikanische Meisenhäher (P. canadensis).
Die Vorkommen dieser Häherarten ist auf die schneereichen Gebiete der Nordhalbkugel beschränkt.

種の比較1)

1) Hartmann (2000a, 2000b and 2016)に基づく

ランダムな標本

アカオカケス
Perisoreus infaustus
アカオカケス
Perisoreus infaustus
アカオカケス
Perisoreus infaustus
カナダカケス
Perisoreus canadensis
カナダカケス
Perisoreus canadensis
カナダカケス
Perisoreus canadensis
アカオカケス
Perisoreus infaustus