When No Birds Sang is a collaborative studio album by American grindcore band Full of Hell and shoegaze band Nothing. It was released on December 1, 2023, through Closed Casket Activities.

The bands have known each other since the 2010s and stayed in contact ever since.^[1] The connection was strengthened through sharing stages together and eventually led to the recording of a collaborative project.^[2] Production was handled by Fit for an Autopsy guitarist Will Putney. Domenic Palermo of Nothing shared that both bands "deal with the same genre-phobia" but will only come together to create "soul crushers". Full of Hell's Dylan Walker added that there is a common "identity" that allowed them to meet where "it's lush and beautiful, but also sad and ugly".^[3]

Olly Thomas of Kerrang! drew comparisons to the "spectral sound" of early Mogwai and My Bloody Valentine, as well as the "driving heaviness" of Swans. Thomas concluded that the album bears the "imprint of both bands" but sounds like "nothing from either back catalogue", citing the "overwhelming finale to an impressively varied team-up".^[4] Danielle Chelosky at Stereogum awarded the project the accolade "album of the week", saying that When No Birds Sang morphs "tragedy into devastating beauty". It transcends "mortality" and stares at it at the same time, creating "an endless fall into the unknown". Chelosky called it a clash "in the perfect middle".^[6] Reviewing the album for Pitchfork, Sadie Sartini Garner stated that it "highlights the depression that's always lurking within both bands' heaviness", calling it "the rare metal album whose greatest virtue is its delicacy".^[5]