Operation osprey

"Operation Osprey" is a book written by David A. Hill and published by Helbling. It is part of the Helbling Readers Blue Series, designed for upper secondary students with a CEFR A2/B1 language level. The story follows Don and Mike, best friends who live in the sleepy town of Saltley and love birdwatching. Their lives become exciting when Mike spots a pair of ospreys at a nearby lake. The boys decide to protect the birds so they can make a nest, but they become suspicious when Mr. Roberts takes an interest in the birds.