Royal Australasian Ornithologists Union early 20th century called themselves 'oologists', though the distinction between the notionally scientific discipline of oology and simple egg-collecting was blurred. Identification of any but the most common and distinctive species usually entailed the collection of specimens to be made into study skins. Modern field-guides did not exist and few people could afford the massive multi-volume, lavishly illustrated, handbooks of John Gould and Gregory Mathews. However, both Archibald J. Campbell and Alfred North had produced comprehensive guides to what was known about the nests and eggs of Australian birds, with illustrations of the eggs rather than of the birds themselves,
What the Health What the Health What the Health is a 2017 documentary film which critiques the health impact of meat and dairy products consumption, and questions the practices of the leading health and pharmaceutical organizations. Its primary purpose is to advocate for a plant-based diet. The documentary has been criticized by a number of medical doctors, dietitians, and investigative journalists for what they describe as confusing causation with correlation, cherry picking science studies, using biased sources, distorting study findings, and using "weak-to-non-existent data". Advertised as "The Health Film That Health Organizations Don't Want You To See", the film follows Kip Andersen as