Tibetan Sand-Plover - Parthasarathy Gopalan
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Contributor

Parthasarathy Gopalan Media from this contributor Profile

Date

Location

Garacharma Wetlands
South Andaman, Andaman and Nicobar Islands, India
Media from this location Illustrated Checklist
Map
Map Coordinates: 11.6183, 92.7063
Age
Not specified
Sex
Not specified

Observation details

It was fairly straightforward on this occasion to identify both the sand plovers as they were seen in the same location. The Lesser Sand Plovers were relatively diminutive, slender, with a smaller head and a rounder crown. The bill was shorter, more slender and blunt. The bill length appeared to be less than the distance between the base of the bill to the rear of the eye in LSP vis-a-vis the GSP. The legs (tibia) appeared slightly shorter and a darker greenish grey in colour than the Greater's. The Tibio-tarsal ratio in the LSP was less than that in the GSP. The stance of the bird was generally more upright, compared to the GSP. After reviewing the images on the computer, the Tarsus: Bill Length ratio of the LSP was around 1.8-2.0 whereas that of the GSP was closer to 1.5-1.6. The calls of the two species were also slightly different.

Technical information

Model
Canon EOS REBEL T5i
ISO
400
Focal length
600 mm
Flash
Flash did not fire
f-stop
f/6.3
Shutter speed
1/1000 sec
Dimensions
1323 pixels x 865 pixels
Original file size
264.96 KB