**3. Overview**

Degree of knowledge about the diet of owls in Ecuador can be ranked into four categories: null (no information), scarce (less than five events reported), limited (at least five events reported), and moderate (at least two studies in different localities). There is no extensive rank in Ecuador, and it will be an owl with many studies over the long term in various habitats and many variables. We define five events as a minimal sample for statistical tests; an event is a museum skin, a pellet, a photograph, an observation, or a report of an independent predation event (**Table 1**).

In order to roughly illustrate the diet breadth of each owl taxa in Ecuador, we organized overall prey into five groups (mammals, birds, reptiles, amphibians, and invertebrates). We excluded studies with an exclusive mammalogical approach or studies without quantitative data on prey (**Table 1**).

