Harriers hunt low. They quarter open ground at head height, tilting from side to side on wings held in a shallow V, listening as much as looking — the face is dished like an owl's for exactly that reason. Nothing else over Indian grassland flies quite that way, and you learn to pick one out at half a kilometre by the flight alone.
Photographing them is a problem of prediction rather than patience. The bird is moving, low, and usually going away from you; the moment worth having is the turn, when it banks and the underwing comes into the light. Most of the winter they are on stubble and fallow at first light, and the good frames come in the twenty minutes when the sun is low enough to fill that underwing and bright enough to freeze it.
Identification is the other problem. Adult males are distinctive. Females and juveniles — the ringtails — are a genuine test, and honest birders leave some of them unnamed. Where I could not be sure, the frames below say so.
6Species in India
3Photographed
Open groundWhere to look
WinterWhen to look
Low, tiltingHow they fly
The species
Western Marsh Harrier
Circus aeruginosus5 frames
Status
Winter visitor
Range
Widespread, wherever there is enough water
Habitat
Reedbeds, marsh and wetland edges rather than dry grassland
IUCN
Least Concern
Bulkier and heavier than the grassland harriers, and tied to wetlands. The commonest harrier over most Indian marshes in winter.
Heavier and broader-winged than Montagu's or Pallid, with a more laboured flight. The male is grey with a clean black wingtip and a white rump.
Pallid Harrier
Circus macrourus3 frames
Status
Winter visitor
Range
Widespread in open country, often alongside Montagu's
Habitat
Dry grassland and cultivation, frequently the same fields as Montagu's
IUCN
Near Threatened
Adult males are paler and cleaner than Montagu's, with a narrow black wedge at the wingtip and no black secondary bar. Juveniles are warm unstreaked buff below with a dark ear-covert patch and a bold pale collar. Separating ringtail Pallid from ringtail Montagu's in the field is a well-known difficulty.
FM0121
Dec 2017Rollapadu Wildlife Sanctuary, Kurnool, Andhra PradeshJuvenile. Possibly Montagu's Harrier — juveniles of the two are very close.