Table 1. Global house sparrow introduction or translocation events by region.

Introduction and translocation events include both purposeful and inadvertent release of any number of birds from all subspecies, successful or unsuccessful. We list a range instead of a single number because of discrepancies among published reports. For sources used, please refer to https://doi.org/10.6084/m9.figshare.11915955.v1.

Region	Number of introductions or translocations
Africa	24–43
Asia	9–11
Oceania	54–60
Europe	4+
North America	135–136
South America	32–35+