Ida Phyllis Barclay-Smith CBE (18 May 1902 – 2 January 1980) was a British ornithologist and editor of the Avicultural Magazine.
She studied at Blackheath high school and King's College, London and joined as an assistant secretary to the Royal Society for the Protection of Birds (RSPB) in 1924.
Jean Delacour who was vice-president of the International Council for Bird Preservation (ICBP) was impressed by her organizational efficiency.
Her strengths were in building organizations, ensuring communication, collaboration and participation within and across an international network of scientists, civil servants and politicians.
[4] She was made MBE in 1958 for her services to conservation, CBE for 1970,[5] and awarded Ridder of the Most Excellent Order of the Golden Ark by Prince Bernhard of the Netherlands.