This is a sample illustration from a book whose working title is 'Dead Wingers', and will feature 60 fictitious but now extinct birds. There are six cartoonists working on this project including me.
They will all have a picture and explanatory text. The birds that is, not the cartoonists.
This one is 'The Extremely Spotted Spottiwake'. It is a distant relative of the Blackhead Gull.