THE PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 251 
llth day.—Feathers shooting from the skin, but 
it is difficult to determine the exact colour yet. 
12th day.—A great advance in growth and feathering 
in twenty-four hours. 
When one approaches, it pecks hard, and uses its 
wings offensively also. 
13th day.—Colour of the bird, though one not 
naturally easily made out, is now clear. 
14th day.—When taken from the small compartment 
in which its nest is, it walks back promptly and 
well. 
15th day.—The wings are well covered with feathers. 
18th day.—The bird does not peck when approached, 
but shrinks. 
When its wings are drawn out it pulls them in again 
(as did the owl-pigeon on the 22nd day). 
20th day.—Shrinks to-day, but when it gets back 
into a corner of its nest it then pecks vigorously. 
24th day.— Behaviour similar to that of 20th and 
following days. 
28th day.—Out of the nest, looking after itself to a 
large extent, and beginning to /ly. 
34th day.—The wis is turning red. Hitherto it has 
been of a dull, ill-defined colour. 
Another Dragoon-Pigeon, C, of different Parentage. 
Though the diary was kept in the same way as the 
previous one, only such parts of it will be given here as 
serve to bring out something new or to mark individual 
differences. 
1st day.—I could get no detinite reaction to tests for 
taste or smell. 
Eyes held closed, but can be opened. 
4th day.— Holds its head somewhat differently 
from B. 
