(1810) Astur trivirgatus rufitinctus.
THE NORTHERN GUESTED GOSHAWK.
Spizaetus rufitinctus McClell., P. Z. S., 1839, p. 153 (Assam). Lophospizias trivirgatus. Blanf. & Oates, iii, p. 401 (part.).
Vernacular names. Churiari, Jamal Kanthi, Jurye (Nepal); Hagrani Daoling (Cachari).
Description. Differs from the preceding race only in its larger size.
Colours of soft parts as in the Southern Crested Goshawk.
Measurements. Wing, 224 to 237 mm., 228 to 267 mm.
Distribution. Northern India from Garhwal and Nepal to Eastern and Southern Assam; Northern and Central Burma through the Indo-Chinese countries to formosa and Hainan.
Nidification. The Northern Crested Goshawk breeds from the middle of March to the middle of May from the foot-hills up to 6,000 feet, at which height its nest has been taken in the Naga Hills. Nest and eggs are indistinguishable from those of the previous bird though the latter are larger, twenty averaging 48.4 x 39.6 mm.: maxima 54.0 X 38.0 and 49.8 X 41.0 mm.; minima 45.0 x 39.7 and 54.0 x 38.0 mm. The nests I have personally taken have been savagely protected by both parent-birds and it has always been necessary to lire shots in the air to protect the climbers. The birds sometimes use the same nest several years in succession and will generally lay again if the first eggs are taken when fresh.
Habits. Similar to those of the preceding bird but this race feeds more on green pigeons, wood partridges and larger birds, even on jungle-fowl and pheasants. Its ordinary cry is a shrill prolonged yelp but it also makes a hoarse chuckling note and when attacking nest-thieves screams loudly and utters deep croaks as it swoops.