Songbird is a medium semi-solid colour - a type of duck egg blue but with a hint of green... similar to the colouring of a blue waxbill. It also pairs well with Linen and Abalone for a low contrast combination.
Confused between the difference between Songbird and West Coast Fog? Songbird has a greenish tinge, where West Coast Fog has a blue grey tone. Songbird was recently described to me as the hues of tarnish on bronze - that should also help!