Hatebeak is an American death metal band, formed by Blake Harrison and Mark Sloan, featuring Waldo (b. 1991), a grey parrot. Hatebeak is reported to be the first band to have an avian vocalist.^[1] They never tour so as to not distress Waldo.^[2] Hatebeak is signed to Reptilian Records. They released the album Number of the Beak on June 26, 2015, through Reptilian Records.^[3]

The band's sound has been described as "a jackhammer being ground in a compactor".^[4] Aquarius Records magazine called Hatebeak "furious and blasting death metal".^[5] Hatebeak made its second record with Caninus, a band whose lead singers were two dogs.^[5] Hatebeak's goal is to "raise the bar for extreme music".^[5]

• Waldo the Parrot – vocals
• Mark Sloan – guitar, bass
• Blake Harrison – drums (died 2024)

• Beak of Putrefaction split with Longmont Potion Castle (2004)
• Bird Seeds of Vengeance split with Caninus (2005)
• The Thing That Should Not Beak split with Birdflesh (2007)
• The Number of the Beak (2015)
• Birdhouse By The Cemetery split with Boar Glue (2018)

• Zoomusicology
• Biomusic
• Caninus

• Hatebeak at Metal Archives
• Interview with Blacktable.com Archived 2019-03-17 at the Wayback Machine
• Enough Fanzine - Beak of Putrefaction Archived 2016-03-03 at the Wayback Machine
• Hatebeak on Bandcamp
• Hatebeak discography at Discogs