Phuket isn't primarily known as a wildlife destination, but its remaining forest and wetland areas support a reasonable range of bird life for anyone interested in looking.
Where to look
Khao Phra Thaeo National Park and the Sirinat National Park area (covering Mai Khao, Nai Yang and Nai Thon) are the island's best-preserved habitats, offering the most consistent birdwatching opportunities.
What you might see
A mix of resident forest species and, seasonally, migratory birds passing through the wider region — sightings vary considerably by season and time of day, with early morning generally the most productive window.
The gibbon rehabilitation project
Also within Khao Phra Thaeo, a gibbon rehabilitation centre cares for animals rescued from the illegal pet trade — not a bird-watching stop specifically, but a worthwhile addition to a nature-focused morning in the park.
Setting expectations
This is a modest, low-key nature experience rather than a dedicated wildlife destination — worth combining with a waterfall visit or park walk rather than treating as a standalone half-day activity.