A Voweller's Bestiary (Abridged ed)

[ Lipogram: a composition from which the writer rejects all words that contain a certain letter or letters. ] JonArno Lawson, addict of wordplay and lover of children's poetry, has created a collection of lipograms written for children. The idea behind A Voweller's Bestiary is a simple one: an alphabet book based on vowel combinations, rather than on initial letters.

This is vowel language applied to the animal kingdom.