An odd nest for a lapwing?

While driving along a track in the grassland of the Dhikala range in Corbett NP, we spotted a pair of Red-wattled lapwings (Vanellus indicus) at a nest. They usually nest in scrapes on the ground, but I’d never seen one before. Still, the location in the middle of a track seemed oddly exposed (featured photo). The pair had chosen the grassy part where the wheels of jeeps would seldom reach, so that the danger of accidental crushing of the eggs by passing vehicles was minimized. Lapwings are known to keep guard around the nest and mob larger animals to protect their nests. I supposed that this is the way they ensure that deer or elephants do not crush their eggs (I would dearly 🙂 love to watch two lapwings trying to budge an elephant from its intended path). The very next day I saw a lapwing determinedly stand its ground in front of our jeep, forcing us to skirt it (photo below). We looked for its nest, but it must have been hidden in the grass nearby. So at least with us this behaviour succeeded.

Ground-nesting birds lose eggs to predators, and this is no exception. A count in the grounds of the Delhi zoo showed that over 40% of their eggs are taken by predators, mainly mongoose, crows and kites. It is now known that crows can discover nests by watching humans, so the extreme hands-on process of counting, as described in the article, may have caused more loss of eggs than is normal. Still, even inside Corbett NP there must be a significant number of predators on the watch for eggs. One response from the bird is camouflage: the eggs are the colour of the dust you see here, with splotches of black, which make them hard to spot among leaf litter and grass.

Like many others, I make it a principle not to go to a nest and take photos of the eggs, so that we don’t lead predators like corvids to one. But I kept worrying about the selection of such an exposed site. I later found a report of a pair nesting on the open roof of a bungalow. There was an even older report of a pair nesting between the tracks of a frequently used railroad. I wonder whether V. indicus protects its eggs by active deterrence rather than subterfuge. The very presence of two adults would alert egg-stealers of the location of a nest, even if it is hidden. So it is possible that these sightings of relatively visible nesting sites is no accident. Clearly there is much still to be understood about even such a common species of bird.

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