"… all the men for whom collected, except perhaps Sir , were primarily botanists, and Catesby's main task in America was the collecting of botanical specimens. Botany was the great science of the day and zoology in all its branches had to take second place. But the fact remains that Catesby somehow managed to do a great work on birds, covering about one hundred species, first depicted in the field with each one's particular plant or tree associate, and later etched or colored by himself or under his direction in England."