In 'Sweet Memories: A Nostalgic Trip Down Confectionery Lane' Opie records how Edward Sharp introduced Kreemy toffee in 1911 and the colourful, 'iconic macaw' with the slogan "Sharp's Toffee Speaks for Itself" in 1915, which led onto Sharp's becoming the world's largest toffee manufacturer in its day. 
Leskiw's research, tracing the unnatural geographical range of the 'non-migratory' mackaw more than a thousand miles from their natural range, reports how the human capture and transportation of live macaws and parrots was carried out within 'prehistoric communities' as the macaw was regarded as an 'important bird used in ceremony, display, and trade". Tracking archaeological digs in southeastern Mexico and southwestern America, Leskiw recalls a macaw having been unearthed alongside a human child at Grasshopper Ruin in central Arizona, puzzling archaeologists to this day.'
1. Opie, R. 'Sweet Memories: a nostalgic trip down confectionery lane'. National Trust Books. p62
2.Leskiw, T. ' Scarlet Macaws and Their Kin in the Desert Southwest'. Bhatter College Journal of Multidisciplinary Studies, Vol. III, December, p52