The shvi ("whistle" in Armenian) is an end-blown wooden duct flute that has 8 holes.

Aliases: shavi, shevi, tav shvi
Description: Usually around 32 cm long, reedless, has a metal ring at upper end near mouthpiece for adjusting sound. Made of reed, wood or bamboo. Generally has a range of two octaves.

Origin: Armenia, time unknown but has been in use for several generations.

Usage/History: Played both solo and in folk music groups. Used for playing pastoral songs traditionally played by nomadic shepherds, also used by shepherds for everyday music-making. Popularly known for reproducing bird calls.

Wikidata item: https://www.wikidata.org/wiki/Q1986655

Related instruments:
Duduk: https://musicbrainz.org/instrument/e5e6de9d-bde7-4340-a591-f1c55c658c2c
Zurna: https://musicbrainz.org/instrument/0666c718-137e-4cc6-881d-fc6430d7dea4
Blul/ Kaval: https://musicbrainz.org/instrument/e6c0f0f4-9e03-4177-8ccc-c4c99c8a9d83
(all related Armenian woodwinds)

References:

http://zangezur.tripod.com/music/shvi.html

https://en.wikipedia.org/wiki/Shvi

http://www.volkangucer.com/winds.html

http://www.face-music.ch/instrum/armenia_instrum_de.html

Image link: http://www.duduk.com/Arm-music-ins/Shvi/index.html