Grey-headed Woodpecker, Streak-breasted Woodpecker, and Laced Woodpecker are three similar-looking woodpeckers but of different species. Can you spot the difference?
- Grey-headed has unmarked olive-green underparts.
- The Streak-breasted Woodpecker has a blackish moustache that is usually less bold, a greener streaked throat distinguished by greener throat which is often streaked, greener breast with bold whitish scaling.
- Laced Woodpecker has a blackish moustache which is slightly speckled whitish.
Grey-headed Woodpecker on the left. Streak-breasted Woodpecker on the right. Both taken in Kaeng Krachan National Park in Thailand in April.
Photo Travel Asia. com 
Your ‘Laced Woodpecker’ from kaengkrachan is in fact Picus canus, Grey-headed Woodpecker. There are no confirmed records of Laced from the forests of Kaeng Krachan, although Streak-breasted is misidentified aplenty. And, as in this case, seemingly, Gray-headed Woodpecker.
Thanks for highlighting 🙏
You are right about the Grey-headed Woodpecker. It is not Laced Woodpecker. Laced woodpecker was taken in Singapore. Thank you for pointing out 🙏