PSITTIPARUS. 119 
Measurements. Wing 86 to 89°5 mm.; tail about 78 mm.; cul- 
men 12 to 13 mm. long but only 9 to 9°5 nm. deep at the base ; 
tarsus about 25 mm. 
Distribution. Hills South of the Brahmaputra, Chin, Kachin 
Hills and hills of Central Burma. 
Nidification. Cannot be distinguished from that of the Red- 
headed Parrot-Bill in any way. 38 eggs average 20°7 x 16-2 mm. 
Habits. Similar to those of P. r. bakeri, but is perhaps not 
found at such low elevations. It occurred in the low hills round 
Margharita in Assam, but here the close proximity of the snow- 
line gives an avitauna and flora at 700 to 1,000 feet which obtains 
elsewhere at more than twice this height. It is curious that 
though all the Red-headed forms of Parrot-Bill consort together 
when feeding, none of the red-headed birds are ever found mixing 
with those of the grey-headed races. 
