Bernd Heinrich
One Wild Bird at a Time: Portraits of Individual Lives – Houghton Mifflin Harcourt. View on Amazon
The Homing Instinct: Meaning and Mystery in Animal Migration – Mariner Books. View on Amazon
From Amazon
The Warbler Road 
From Amazon
Extinct Boids 
Mind of the Raven: Investigations and Adventures with Wolf-Birds – Harper Perennial. View on Amazon
Gulls, Second Edition: A Guide to Identification (T & AD Poyser) – Used Book in Good Condition. View on Amazon
From Amazon
The Golden Eagle 
From Amazon
The Golden Eagle 
One Man's Owl: Abridged Edition – Used Book in Good Condition. View on Amazon