Fig 2. Mexican cities with reported Monk Parakeet sightings, by region.

Points indicate cities in which at least one reported sighting was entered into online citizen science databases or in a published scientific report, during 1999–2015. Mexico state shapefiles were downloaded from the GADM database of Global Administrative Area (version 2.8, available at shttp://www.gadm.org/download, Mexico, level 1) and mapped using the R package ‘maps’ [65].