Feather of Diatryma Summoning

As an action speak the command word and throw
the feather into a Large unoccupied space on the ground within 5 feet of you, and the feather
becomes a living diatryma for up to 6 hours, after
which it reverts to its feather form. It reverts to
feather form early if it drops to 0 hit points or if
you use an action to speak the command word
again while touching the bird. When the
diatryma reverts to feather form, the magic of
the feather can’t be used again until 7 days have
passed.