It may not have been the largest terror bird on the block, but still, an encounter with Llallawavis scagliai was no laughing matter. To add to the fearsome sight of its bone crushing beak, scientists now suspect this terror bird let out exceptionally low-pitched cries when it encountered prey.
Source Gizmodo http://feeds.gawker.com/~r/gizmodo/full/~3/mrNgCssNC_0/newly-discovered-terror-bird-sheds-light-on-a-fearsome-1697308454
