ajohn

Most are Red-billed Starlings - notice the obvious white panel in the primaries.
The bird in the centre is something different - it lacks the white panel and seems to have white tips to the tail. I think it is probably a White-cheeked Starling but I'm struggling to be sure about that with the resolution on my screen.

ajohn

Yes, very useful. You can see the white tips to the tail very clearly and if you look closely can also see the pale cheeks contrasting with the darker head/breast. This is a White-cheeked Starling (probably female - I would expect a male to be more strongly marked, especially the darker breast).