While more information exists on the Blue-and-white Swallow than many of our Neotropical birds, there are still notable gaps in knowledge. The greatest gap is in demography and population information. The population estimate ranges from 5-50,000,000, demonstrating an extreme lack of precision. We know little about the life span and survivorship of the swallows. We also lack information on sources of mortality, such as diseases or body parasites, predation, or anthropogenic causes of mortality. These types of information are most essential for tracking population changes over time, determining conservation status, and ensuring that this common bird remains common.