Tern question Colombia (1 Viewer)

[njlarsen]

The attached image shows a flock of skimmers with Sandwich (Cabots) tern centrally behind. What are the two smaller terns left and right? I had least and common terns at this location, which was SFF Los Flamencos by El Camarones, Guajira, Colombia, and date was 28 August.
thanks
Niels

 

[lgonz1008]

Based on the location, Common Tern seems like the closest match. Non-breeding plumage of dark bill with reddish legs (see tern on the right)

 

[maplekong]

Could it be a common?

 

[njlarsen]

Thanks, I was leaning common but wanted a second opinion.
Niels

 

[THE_FERN]

Agree Common terns.