Medium-Sized Terns

Common Tern-1
Common Tern-1

Photographed in Bundala National Park.

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Common Tern-2
Common Tern-2

Photographed in Bundala National Park.

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Common Tern-3
Common Tern-3

Photographed in Bundala National Park.

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Common Tern-1
Common Tern-1

Photographed in Bundala National Park.

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Common Tern
(පොදු මුහුදුලිහිනියා)
Sterna hirundo

Based on size, the grey upperparts, hint of red in the beak, I believe these are Common Tern's in non-breeding plumage. Observed and photographed at Bundala National Park, there were 4 of them at the edge of a water hole.

Doubtful identification
Critically Endangered
 
Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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1/1
Roseate Tern
(අරුනු මුහුදුලිහිනියා)
Sterna dougallii

Yet to capture image

Critically Endangered
 
Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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1/1
Black-naped Tern
(කලු-ගෙලැසි මුහුදුලිහිනියා)
Sterna sumatrana

Yet to capture image

Vagrant species
 
Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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1/1
Bridled Tern
(කඩියාලම් මුහුදුලිහිනියා)
Onychoprion anaethetus

Yet to capture image

Vagrant species
Critically Endangered
 
Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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Still to capture photo
Still to capture photo

Still waiting to get lucky and capture image.

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1/1
Sooty Tern
(දුම්බුටු මුහුදුලිහිනියා)
Onychoprion fuscatus

Yet to capture image

Vagrant species
Critically Endangered