Update on the distribution of some breeding bird species in western Sicily

This work reports the distribution of some breeding bird species of interest (conservation status, limited distribution or density in Sicily/Italy, etc.) in the province of Trapani (Western Sicily, Italy), updating the latest Sicilian and Italian atlases of breeding birds. We report data on breeding bird species obtained in the period 2017 – 2024 and not mapped as nesting in the province of Trapani in the above-mentioned atlases, along with species for which our data significantly adds to that reported therein. We update the distribution of 24 species and estimate their breeding population where possible. Ornitho.it is now the standard accepted by the Italian ornithological community for the collection and editing of atlases. While this platform plays a commendable role in data collection in regions with a high number of observers, this does not apply to understudied or under-represented areas such as Sicily. This work publishes useful data to develop maps that better represent the true distribution of a number of species.