Caspian Tern

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Just lovely Pratim.

Thanks Mr. Christopher Lane ...

PAKHI DEKHOON PAKHI CHINOON #655. OBSERVE THE BIRD AND RECOGNIZE...CASPIAN TERN ... WATERCOLOUR...A4.... 2016..[From the photograph of Mr. ANAND PENDHARKAR]... The Caspian tern (Hydroprogne caspia, formerly Sterna caspia) is a species of tern, with a subcosmopolitan but scattered distribution. Despite its extensive range, it is monotypic of its genus, and has no subspecies accepted either. In New Zealandit is also known by the Maori name taranui. It is the world's largest tern with a length of 48–60 cm (19–24 in), a wingspan of 127–145 cm (50–57 in) and a weight of 530–782 g (18.7–27.6 oz). Adult birds have black legs, and a long thick red-orange bill with a small black tip. They have a white head with a black cap and white neck, belly and tail. The upper wings and back are pale grey; the underwings are pale with dark primary feathers. In flight, the tail is less forked than other terns and wing tips black on the underside. In winter, the black cap is still present (unlike many oth