Alauda cristata Linn., Syst. Nat., 10th ed. i, p. 166 (1758), Type-locality: Vienna, Austria.
Key to Subspecies.
A. Generally smaller; wing under 105 mm.
a. Paler and more grey ; wing under 102 mm………..G. v, chendoola, p. 343.
b. Darker and more rufescent; wing under 106 mm………..G. c. leautungensis, [p. 346.
B. Generally bigger; wing over 105 mm ………..G. c. magna, p, 345.
Owing to their Winter ranges overlapping, it is extremely difficult to discriminate between the various races of this Lark. From an examination of the material in the British Museum, there would seem to be three fairly well-marked races which occur in India: i. e., a small rather paler form breeding in the plains of India with a wing between 93 and 101 mm.; another small but darker form breeding from China to Tibet with a wing between 96 and 105 mm.; and, finally, a larger and paler form breeding in Central Asia to the boundaries of India on the Baluchistan and Afghan frontiers with a wing nearly always over 105 and up to 117 mm. In all three races, however, we get exceptional birds during the Summer months and, therefore, apparently in their proper breeding-range, which either exceed or are below the limits of measurements here given. It may be that with more breeding material better definition of the races will be possible.