This resource has 1136 Occurrence records of native and exotic birds observed between Coquimbo and El Maule Regions from Chile. Each sampled site was selected because its urbanization degree. In each site, we perform bird counts and behavioral observations across different environments that vary in urban development. During the field work, all data was recorded in pre-filled paperwork by two researchers. The data was digitalized by the same researchers, and a curator check for consistency between the paperwork and digital files (records, scientific names, times, dates, etc).