Sometimes considered a subspecies of Magnificent Riflebird (Lophorina magnifica).
Considered by some authors to be a subspecies of Magnificent Riflebird (Lophorina magnifica). References See References. Files: More Information BirdLife International For more information about the Growling Riflebird see... BirdLife International Species Factsheet. Articles about the Growling Riflebird If you would like to read any articles about the Growling Riflebird... Show Articles (0) No Pictures of Growling Riflebird If Birdpedia has no pictures of Growling Riflebird or you would like to see more, then try the following... From BING (0) No Videos of Growling Riflebird If Birdpedia has no videos of Growling Riflebird or you would like to see more, then try the following.. From BING (0)