[MILLS] PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 243 
If the bird is placed anywhere out of its nest, it moves about in a 
restless way. 
Sth day.—kKEvidence of vision at four feet. 
Ith day.—Can now see objects distant six feet. 
When the sides of the beak are touched, movements follow as if 
preparing to receive food. 
10th day.—Objects now seem to be visible to the bird at any part 
of its own compartment of the loft, 7. ¢., at nine to ten feet. 
To day, for the first time, is witnessed undoubted defensive snapping 
or pecking with the beak when the hand is brought near it, whether in 
its nest or on the floor of the loft. 
Feathers are now grown out far enough to enable one to judge of 
their colour. 

11th day— Growth of feathers and general growth now considerable. 
The bird can now walk fairly well. 
12th day.—An improvement in walking and feathering noticeable 
since yesterday. 
13th day.—When placed on the floor of the loft within a few inches 
of the nest, it attempts to return to the nest through some slats that 
fence it in. The nest is on the loft floor, and is covered with sawdust 
only now, though at first there was also a little straw. 
15th day.—The bird can now get back to its nest when two feet away, 
and also succeeds in pushing between the slats. 
16th day.—The parents have somewhat neglected the feeding of their 
offspring to-day, as they are preparing to sit again. 
17th day.—Better fed to-day. When either parent enters the little 
compartment in which the nest is, the young one scrambles over a brick 
that surrounds the nest to solicit food. 
19th day.—The bird is now well feathered. 
When placed on the perch, it ¢//ngs more firmly than before and in a 
different fashion—in fact, more like a mature pigeon. 
27th day.—The bird is practically completely feathered, 
34th day.—This owl-pigeon is leading a comparatively independent 
existence, It is out of its nest most of the time and flying about the 
loft, though occasionally fed by the parents, which are sitting on another 
nest of eggs (two). 
Dragoon PIGEoN HaAtcHEeD Our AND FED By ITS PARENTS. 
This one will be named B to distinguish it from another, C. 
Ist day.—Eyes unopened. The loudest whistle produces no effect. 
The bird is evidently deaf. 
Blowing on it causes the bird to move. Putting its beak to one’s 
mouth, it opens the former. 
