What is a horned screamer? Horned screamers are the unicorns of the bird world. Over the course of their lives, these birds grow long, white spines of cartilage in the middle of their foreheads.

The Banshee is a custom two-mode horn; one setting is essentially a ... Enter the Plug & Play Screamer, and a new project page on micro-funding site Indiegogo. With only one bolt and four wire ...