John Albert Leach

John Albert Leach (19 March 1870 – 3 October 1929) was an ornithologist, teacher and headmaster in the state of Victoria, Australia.

Leach was a regular writer and broadcaster on natural history subjects and introduced it into the school curriculum.

He was also part-authored a series of Federal Geography books, and worked on the Official Checklist of the Birds of Australia second and revised edition, published by the RAOU in September 1926.

Leach had been preparing two books before his death, one of these was a collection of weekly radio broadcasts he made on 3LO in the mid-1920s.

Among his contributions to ornithology was the relationship between the Australian magpie, butcherbirds and currawongs in the family Cracticidae, now sunk as a subfamily into Artamidae.