Deutsch: Verbreitung der Schopfhäher (Cyanocitta) in Nordamerika. Rot: Diademhäher (Cyanocitta stelleri); Schwarz: Blauhäher (Cyanocitta cristata). Punktlinie: gelegentlicher Wintergast; Strichlinie: gelegentliche Bruten. Nach
Tarvin, Keith A. and Glen E. Woolfenden. 1999. Blue Jay (Cyanocitta cristata), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; doi:10.2173/bna.469
Greene, Erick, William Davison and Vincent R. Muehter. 1998. Steller's Jay (Cyanocitta stelleri), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; doi:10.2173/bna.343
English: Distribution of the Cyanocitta jays in North America. Red: Steller's Jay (Cyanocitta stelleri), black: Blue Jay (Cyanocitta cristata). Dotted line: irregular wintering, dashed line: irregular breeding. Based on
Tarvin, Keith A. and Glen E. Woolfenden. 1999. Blue Jay (Cyanocitta cristata), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; doi:10.2173/bna.469
Greene, Erick, William Davison and Vincent R. Muehter. 1998. Steller's Jay (Cyanocitta stelleri), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; doi:10.2173/bna.343
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2011-03-26T13:23:52Z TUBS 1181x1185 (13104869 Bytes) {{Information |Description={{de|Lage von XY (siehe Dateiname) in [[:de:Nordamerika|Nordamerika]].}} {{en|Location of XY (see filename) in [[:en:North America|North America]].}} |Source={{own}}{{Adobe Illustrator}}{{Commonist
== {{int:filedesc}} == {{Information |Description={{de|Verbreitung der Schopfhäher (''Cyanocitta'') in Nordamerika nach * Tarvin, Keith A. and Glen E. Woolfenden. 1999. Blue Jay (Cyanocitta cristata), The Birds of North America Online (A. Poole, Ed.). I