Tue ZooLocist—Aveust, 1872. 3163 
the original pair, as I know by the bright yellow of the forehead of 
the parents: other pairs are love-making. » 
April 18. A young parrot made its appearance; I found it 
slumbering with its head on one side, as is the parrot fashion after 
leaving the nest for the first time. 
» 25. A second young one appeared; he had frequently 
exhibited his head at the entrance-hole. 
» 28. A third young one came out, and on the same day one 
of last year’s birds was found dead of lock-jaw, the point of the 
upper mandible being found fixed inside the lower one: this case 
is not siftgular; an exactly similar one came to my knowledge in 
1869. 
» 30. A young parrot was found dead. 
Three eggs were thrown out of the nest at intervals during the 
time this brood was making its appearance. 
No memorandum was made for forty-nine days, although I was 
aware the old pair was breeding a fourth time. 
June 18. Young parrots observed in one of the nests. 
» 30. Young parrots again observed, but still not counted. 
July 5. A young parrot left the nest. 
» 7. A second left the nest. 
» 9. A third left the nest. 
» 11. A fourth left the nest. 
» 13. A fifth left the nest. 
», 15. A sixth left the nest. 
_ All the young ones, as usual, moping and somnolent, but they 
seem very indifferent about feeding. 
From these memoranda I deduce the following conclusions :— 
Ist. That the usual aumber of eggs laid by the species is six. 
2nd. That the female usually laid, the eggs usually hatched, and 
the young ones usually left the nest, at intervals of two days; so 
that if the first egg were laid on the Ist of a month, the sixth 
would be laid on the 13th; and so also with the hatching and 
leaving the nest. 
8rd. That the number of days required in incubation is about 
fifleen, but this is very uncertain, and requires more careful 
observation. 
4th. That a full month usually elapses from the day of hatching 
to the day of leaving the nest. 
