Some reference books I'm collecting on owls and bats

A list of reference books I'm collecting for my work in progress, The Owl and the Bat

Owls

The Hidden Lives of Owls - Leigh Calvez

Exploring The World of Owls - Tracy C. Read 

Owls - National Geographic Kids - Laura Marsh

Bats

The Secret Lives of Bats - Merlin Tuttle

Bats  Strange and Wonderful - Laurence Pringle  Ilustrated by Meryl Henderson

Bat Basics  How to understand and help these amazing Fliying Mammals - Krebbs 

Bats - Natioinal Geographic Kids  - Elizabeth Carney