FredBezies [1] filed a deletion request for corebird-non-streaming-git [2]:
https://github.com/IBBoard/corebird#branch=non-streaming
"Native Gtk+ Twitter Client. Now abandonned. "
[1] https://aur.archlinux.org/account/FredBezies/ [2] https://aur.archlinux.org/pkgbase/corebird-non-streaming-git/