3 tern ID's in one picture. Each circled different color. Indonesia may 2017 (1 Viewer)

[goawildlifeenthusiast]

From what I understand the green circle shows Great crested tern. Need help with blue and red circle, I think red is roseate tern, but have no idea with blue circle.

 

[Bewick]

Blue is whiskered tern- note the dark underbelly.

 

[goawildlifeenthusiast]

Blue is whiskered tern- note the dark underbelly.

Thanks

 

[Bewick]

The bird on the right in blue appears to be a common tern.

Edit- Longipennis subspecies I believe.

 

[goawildlifeenthusiast]

The bird on the right in blue appears to be a common tern.

Edit- Longipennis subspecies I believe.

Both terns in the blue circle look the same to me, may I ask what are the eatures to differentiate?

 

[goawildlifeenthusiast]

The bird on the right in blue appears to be a common tern.

Edit- Longipennis subspecies I believe.

Am i correct with red being roseate?

 

[johnallcock]

Both birds in blue look like longipennis Common Terns to me, which also is also grey below. Compared to Whiskered the bill looks longer and black (dark red on Whiskered).
I think the birds in red may also be Common Terns but I am not sure how to distinguish between these and Roseate in non-breeding plumage, so may be wrong here. Some birds appear to have darker outer webs to the tail feathers, which should favour Common over Roseate I think. Hopefully someone with more experience will be able to comment.