The Northern Range Mountains of Trinidad cocoa trees A new study by the University of St Andrews reveals that ethically sourced chocolate can support wildlife. The study was part of a collaboration led by the University of St Andrews with the University of the West Indies, St Augustine. It shows that research into currently farmed cacao forests, abandoned forests and natural unfarmed forest on the Caribbean island of Trinidad found that all three supported bird diversity, contrary to expectations. Purple honeycreeper Even forest specialist bird species such as collared trogons, long-billed gnatwrens and red-eyed vireos were found in the cultivated areas.