Tern Singapore (1 Viewer)

[wuwu1277]

Hi,: Got some blur images of this tern from very far, possible to ID it? Photos were taken during a pelagic trip at Singapore Straits last weekend. Thank you very much

 

[Grahame Walbridge]

Non-breeding Aleutian Tern.

Grahame

 

[wuwu1277]

Thank you so much Grahame. I thought it is a black-naped tern... Can you pls kindly advise how to differentiate from these two photos, if convenient. Again, thank you so much for the kind ID advice 🙏 🙏 🙏

 

[Grahame Walbridge]

Thank you so much Grahame. I thought it is a black-naped tern... Can you pls kindly advise how to differentiate from these two photos, if convenient. Again, thank you so much for the kind ID advice 🙏 🙏 🙏

Combination of obvious dark/black trailing edge to underside of secondaries, blotchy grey underparts (remnants of sum.pl), contrasting white rump and structure, including rather small bill.

Grahame

 

[wuwu1277]

Combination of obvious dark/black trailing edge to underside of secondaries, blotchy grey underparts (remnants of sum.pl), contrasting white rump and structure, including rather small bill.

Grahame

Dear Grahame: I thank you very much for the sharing. Learnt the ID features. 🙏 🙏 🙏