The Australian Bird Book: A Pocket Book for Field Use by John Albert Leach is a classic field guide first published in the early 20th century. It's designed to help readers, especially educators and amateur birdwatchers, identify various bird species found in Australia. The book includes detailed descriptions and illustrations of over 500 species, along with information on their habitats, behavior, and conservation status.
 
Leach's work emphasizes the unique characteristics of Australian birds and aims to foster a deeper appreciation for the continent's avian life. The book also highlights the importance of nature study in Australian schools and encourages readers to explore and understand the rich biodiversity of Australia.