September (Usually visible from southern latitudes)
Notes
The stars known today as the constellation of Grus were historically seen as a southern extension of Piscis Austrinus. This group of stars were occasionally referred to as the Heron or the Flamingo before becoming formalised as the constellation of the Crane.
Grus, the constellation of the Crane, contains stars viewed 'downwards' through the
Galactic disc, which accounts for its sparse nature.