  Today, many users are actively using Twitter to express their opinions and to
share information. Thanks to the availability of the data, researchers have
studied behaviours and social networks of these users. International migration
studies have also benefited from this social media platform to improve
migration statistics. Although diverse types of social networks have been
studied so far on Twitter, social networks of migrants and natives have not
been studied before. This paper aims to fill this gap by studying
characteristics and behaviours of migrants and natives on Twitter. To do so, we
perform a general assessment of features including profiles and tweets, and an
extensive network analysis on the network. We find that migrants have more
followers than friends. They have also tweeted more despite that both of the
groups have similar account ages. More interestingly, the assortativity scores
showed that users tend to connect based on nationality more than country of
residence, and this is more the case for migrants than natives. Furthermore,
both natives and migrants tend to connect mostly with natives.
