Noun: Alca torda
- Black-and-white northern Atlantic auk having a compressed sharp-edged bill
"The Alca torda's distinctive bill is flattened side-to-side, unlike the puffin's which is flattened top-to-bottom";
- razorbill, razor-billed auk
Type of: auk
Part of: Alca, genus Alca
Encyclopedia: Alca torda