There are tons of Facebook apps available for Mac. But Twitter has only a limited number of resources. Like Facebook, Birddrop keeps Twitter in your OSX Menubar. Keeping Twitter in Menubar make easy to access, you can easily read, compose and tweet like a breeze without opening the individual app.
Birddrop is a free app, download and drag and drop on your application folder. When you open the app it loads in Menubar and asks to enter your Twitter credentials. It loads your tweets flawlessly. When a new tweet is available it popups a notification on screen. Birddrop is a simple app with full of handy use.