<< Previous Next >>

The Indian River Tern


The Indian River Tern
Photo Information
Copyright: Zahoor Ahmed (zahoor_salmi) Gold Star Critiquer/Gold Note Writer [C: 108 W: 0 N: 618] (5538)
Genre: Animals
Medium: Color
Date Taken: 2010-03-26
Categories: Birds
Camera: Canon 40D, 400f5.6 L
Exposure: f/5.6, 1/1250 seconds
Details: Tripod: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2010-09-23 7:12
Viewed: 2479
Points: 2
[Note Guidelines] Photographer's Note
The Indian River Tern or just River Tern (Sterna aurantia) is a bird in the tern family . It is a resident breeder along inland rivers from Iran east through Pakistan into India and Myanmar to Thailand, where it is uncommon. It does not occur in Sri Lanka. Unlike most Sterna terns, it is almost exclusively found on freshwater, rarely venturing even to tidal creeks.

This species breeds from March to May in colonies in less accessible areas such as sandbanks in rivers. It nests in a ground scrape, often on bare rock or sand, and lays three greenish-grey to buff eggs, which are blotched and streaked with brown.


In non-breeding plumage in Hyderabad, India.This is a medium-sized tern, 38-43 cm long with dark grey upperparts, white underparts, a forked tail with long flexible streamers, and long pointed wings. The bill is yellow and the legs red. It has a black cap in breeding plumage. In the winter the cap is greyish white, flecked and streaked with black, there is a dark mask through the eye, and the tip of the bill becomes dusky.

The sexes are similar but juveniles have a brown head, brown-marked grey upperparts, grey breast sides and white underparts. The bill is yellowish with a dark tip

As with other Sterna terns, the River Tern feeds by plunge-diving for fish, crustaceans, tadpoles and aquatic insects in rivers, lakes, and tanks. Its numbers are decreasing is due to the pollution of their habitat.


Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
None
You must be logged in to start a discussion.

Critiques [Translate]

Well done, Zahoor.
Especially given the f5,6 fact in terms of AF.
TFS
Annick

Calibration Check
















0123456789ABCDEF