The giant nuthatch (Sitta magna) is a species of bird in the family Sittidae.
It is the largest species in the genus at 19.5 centimetres (7.68 in), and is largely grey in colour except for a faintly rufous underpart in the female, whose eyestripe is also duller than the male.
The bill is much bulkier than other Sitta.

Giant nuthatches are found in the mountains of southwestern China and northern Thailand, and may be extinct in Myanmar.
Its natural habitat is subtropical or tropical mountain pine forests.
In northern Thailand they were found to use Pinus kesiya stands both for foraging as well as for nesting.
Both parents take care of the young, and the usually three nestlings leave the nest in about 20–23 days.
The giant nuthatch (Sitta magna) is a species of bird in the family Sittidae. It is the largest species in the genus at 19.5 centimetres (7.68 in), and is largely grey in colour except for a faintly rufous underpart in the female, whose eyestripe is also duller than the male. The bill is much bulkier than other Sitta.
Giant nuthatches are found in the mountains of southwestern China and northern Thailand, and may be extinct in Myanmar. Its natural habitat is subtropical or tropical mountain pine forests. In northern Thailand they were found to use Pinus kesiya stands both for foraging as well as for nesting. Both parents take care of the young, and the usually three nestlings leave the nest in about 20–23 days.
Giant nuthatch