If you are looking for the Birdie app, there might be multiple very different apps that could be the one that you are in search of. One of such apps is by Ivo and Vasco Nunes. They started the Birdie project in 2013 to bring a great native Twitter experience to the new elementary desktop. Thanks to their hard work, and the work of many other contributors, plus some great initial design work from incredibly talented people (including Daniel Foré), the Birdie app for Twitter saw its first release back in March 2013. Under Ivo’s direction, the release was a great success and was followed by several incremental updates in the 1.0 series. In the spring of 2015, Ivo announced that Birdie was going to be abandoned unless a developer would be willing to take over the project. Nathan Dyer, the developer of another popular elementary app, jumped at the opportunity, and will be working hard to craft the future of Birdie.