リョコウバト 旅行鳩
The [b]passenger pigeons[/b] ([i]Ectopistes migratorius[/i]) is an extinct species of [[pigeon]]s that were once endemic to North America, named so for their migratory nature (French: [i]passager[/i], meaning "to pass by"). 

Known in Japanese as [i]Ryokoubato[/i] (旅行鳩). 

h4. See also
* [[Tag group:birds]]

h4. External links
* "Wikipedia":[https://en.wikipedia.org/wiki/Passenger_pigeon]
passenger pigeon